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John B. Bell

Department Head, Mathematics and Computational Science Department (MCSD)

Group Leader, Center for Computational Sciences and Engineering (CCSE)

Deputy Director, Combustion Exascale Co-Design Center


John Bell
MS 50A-1148
Lawrence Berkeley National Lab
1 Cyclotron Rd.
Berkeley, CA 94720

510-486-5391 (ofc)
510-604-7437 (cell)
510-486-6900 (fax)

JBBell@lbl.gov

CV


Research Interests

Development and analysis of numerical methods for partial differential equations arising in science and engineering. General topics in scientific computing, computational physics, and fluid dynamics.


Recent Talks

AMR Algorithms for Multiphysics Applications: Current Practice and Future Directions (invited plenary talk given at the 2011 ICiS Multiphysics Workshop, Park City, Utah, August 2011) [pdf]

Low Mach Number Models in Computational Astrophysics (invited plenary talk given at the 2011 ICIAM Meeting, Vancouver, July 2011) [pdf]

Parallel Algorithms for Multiphysics Adaptive Mesh Refinement (given at the DD20 Conference, Seattle, June 2011) [pdf]

AMR Applications in Astrophysics (given at the INT Exascale Workshop, Seattle, June 2011) [pdf]

Combustion Simulation on Next Generation Architectures (given at Los Alamos National Laboratory in May 2011) [pdf]

Modeling of Fluctuations in Algorithm Refinement Methods [pdf]


Publications

K. Balakrishnan, A. Garcia, A. Donev, and J. Bell, "Fluctuating hydrodynamics of multispecies nonreactive mixtures" Physical Review E, vol. 89, No. 1, January 2014. [pdf]

Max Duarte, Ann S. Almgren, Kaushik Balakrishnan, John B. Bell, David M. Romps, "A Numerical Study of Methods for Moist Atmospheric Flows: Compressible Equations," submitted for publication [arxiv].

W. Schmidt, A.S. Almgren, H. Braun, J.F. Engels, J.C. Niemeyer, R.R. Mekuria, A.J. Aspden, J.B. Bell, "Cosmological Fluid Mechanics with Adaptively Refined Large Eddy Simulations," Monthly Notices of the Royal Astronomical Society,, to appear. [arxiv]

A. Donev, A. Nonaka, Y. Sun, T. Fai, A. Garcia and J. Bell, "Low Mach Number Fluctuating Hydrodynamics of Diffusively Mixing Fluids" Communications in Applied Mathematics and Computational Science, 2014, to appear [pdf].

Christopher Malone, A. Nonaka, S. Woosley, A. Almgren, J. Bell, S. Dong and M. Zingale, "The Deflagration Stage of Chandrasekhar Mass Models for Type Ia Supernovae: I. Early Evolution", Astrophysical Journal, 782, 11, 2014. [iop]

M. Cai, A. Nonaka, B. E. Griffith, J. B. Bell, and A. Donev, "Robust Preconditioners for Variable-Coefficient Stokes Flow Problems", submitted for publication.

C. Chan, D. Unat, M. Lijewski, J. Bell, and J. Shalf, "Software Design Space Exploration for Exascale Combustion Co-design", International Supercomputing Conference 2013, Lecture Notes in Computer Science, 7905, 196-212, 2013.

C. Gilet, A. S. Almgren, J. B. Bell, A. Nonaka, S. E. Woosley, M. Zingale, "Low-Mach Number Modeling of Core Convection in Massive Stars", Astrophysical Journal, 773, 137, 2013. [pdf]

Haitao Ma, Stan Woosley, Chris Malone, Ann Almgren, and J.B. Bell, "Carbon Deflagration in Type Ia Supernovae: I. Centrally Ignited Models", Astrophysical Journal, 771, 58, 2013.

M. Zingale, A. Nonaka, A. S. Almgren, J. B. Bell, C. Malone, and R. Orvedahl, "Low Mach Number Modeling of Convection in Helium Shells on Sub-Chandrasekhar White Dwarfs. I. Methodology", Astrophysical Journal, 764, 97, 2013. [pdf]

Weiqun Zhang, L. Howell, A. Almgren, A. Burrows, J. Dolence, J. Bell, "CASTRO: A New Compressible Astrophysical Solver. III. Multigroup Radiation Hydrodynamics", Astrophysical Journal Supplement Series, 204, 7, 2013. [pdf]

A.S. Almgren, A.J. Aspden, J. B. Bell, and M. L. Minion, "On the Use of Higher-Order Projection Methods for Incompressible Turbulent Flow", SIAM J. Sci. Comput., 35, 1, B25-B42, 2013. [pdf]

A. S. Almgren, J. B. Bell, M.J. Lijewski, Z. Lukic, E. Van Andel, "Nyx: A Massively Parallel AMR Code for Computational Cosmology" Astrophysical Journal, 765, 39, 2013.

A. Nonaka, J. B. Bell, M. S. Day, C. Gilet, A. S. Almgren, and M. L. Minion, "A Deferred Correction Coupling Strategy for Low Mach Number Flow with Complex Chemistry", Combustion Theory and Modelling, vol. 16, no. 6, pp. 1053-1088, 2012. [pdf]

K. Balakrishnan, J.B. Bell, A. Donev, and A. Garcia, "Fluctuating Hydrodynamics and Direct Simulation Monte Carlo", 28th International Symposium on Rarefied Gas Dynamics , AIP Conf. Proc. 1501 , 695-704, 2012. [pdf]

J. B. Bell, M. S. Day and M. J. Lijewski, "Simulation of Nitrogen Emissions in a Premixed Hydrogen Flame Stabilized on a Low Swirl Burner", Proceeding of hte Combustion Institute, 2012. [pdf]

G. S. H. Pau, J. B. Bell, A. S. Almgren, K. M. Fagnan and M. J. Lijewski, "An Adaptive Mesh Refinement Algorithm for Compressible Two-Phase Flow In Porous Media", Computational Geosciences, 16, 577-592, 2012. [pdf]

A. Nonaka, A. J. Aspden, M. Zingale, A. S. Almgren, J. B. Bell, and S. E. Woosley, "High-Resolution Simulations of Convection Preceding Ignition in Type Ia Supernovae Using Adaptive Mesh Refinement", Astrophysical Journal, 745, 73, 2012. [pdf]

F. Balboa Usabiaga, J. Bell, R. Delgado-Buscalioni, A. Donev, T. Fai, B. Griffith, C. Peskin, "Staggered Schemes for Fluctuating Hydodynamics", Multiscale Modeling and Simulation, 10, 4, 1369-1408, 2012. [pdf]

A. Nonaka, A. S. Almgren, J. B. Bell, H. Ma, S. E. Woosley, and M. Zingale, "From Convection to Explosion: End-to-End Simulation of Type Ia Supernovae," Proceedings of SciDAC 2011, Denver, CO, July 2011. [pdf]

W. Zhang, L. Howell, A. Almgren, A. Burrows, and J. Bell "CASTRO: A New Compressible Astrophysical Solver. II. Gray Radiation Hydrodynamics", Astrophysical Journal Supplement Series, 1962, 20, (2011) [pdf]

A. Donev, A. de la Fuente, J. B. Bell, and A. L. Garcia, "Enhancement of Diffusive Transport by Nonequilibrium Thermal Fluctuations", Phys. Rev. Lett.,, Vol. 106, No. 20, page 204501, 2011. [pdf]

A. Donev, A. de la Fuente, J. B. Bell, and A. L. Garcia, "Diffusive Transport by Thermal Velocity Fluctuations", accepted for publication in JSTAT [pdf]

M. Day, S. Tachibana, J. Bell, M. Lijewski, V. Beckner and R. Cheng, "A combined computational and experimental characterization of lean premixed turbulent low swirl laboratory flames. I. Methane flames.", submitted for publication [pdf]

M. Zingale, A. Nonaka, A. S. Almgren, J. B. Bell, C. M. Malone, and S. E. Woosley, "The Convective Phase Preceding Type Ia Supernovae", Astrophysical Journal, 740, 8, (2011). [pdf]

A. Garcia, A. Donev, J.B. Bell, and B. Alder, "Hydrodynamic fluctuations in a particle-continuum hybrid for complex fluids", 27th International Symposium on Rarefied Gas Dynamics , AIP Conf. Proc. 1333 , 551-556, 2011. [pdf]

A. Nonaka, S. May, A. S. Almgren, and J. B. Bell, "A Three-Dimensional, Unsplit Godunov Method for Scalar Conservation Laws", SIAM J. Sci. Comput., vol. 33, no. 4, 2011. [pdf]

S. May, A. Nonaka, A. S. Almgren, and J. B. Bell, "An Unsplit, Higher-Order Godunov Method Using Quadratic Reconstruction for Advection in Two Dimensions", Comm. App. Math. and Comp. Sci., vol. 6, no. 1, 2011. [pdf]

C. M. Malone, A. Nonaka, A. S. Almgren, J. B. Bell, and M. Zingale, "Multidimensional Modeling of Type I X-ray Bursts. I. Two-Dimensional Convection Prior to the Outburst of a pure 4He Accretor", Astrophysical Journal, 728, 118, Feb. 2011. [arxiv] [pdf]

J. Nordhaus, A. Burrows, A. Almgren, and J. Bell, "Dimension as a Key to the Neutrino Mechanism of Core-Collapse Supernova Explosions," Astrophysical Journal, 720, 694, Sept. 2010. [arxiv].

A. Almgren, J. Bell, D. Kasen, M. Lijewski, A. Nonaka, P. Nugent, C. Rendleman, R. Thomas, and M. Zingale, "MAESTRO, CASTRO and SEDONA -- Petascale Codes for Astrophysical Applications," Proceedings of SciDAC 2010, Chattanooga, Tennessee, July 2010. [arxiv]

H. Ma, M. Zingale, S. E. Woosley, A. J. Aspden, J. B. Bell, A. S. Almgren, A. Nonaka, and S. Dong, "Type Ia Supernovae: Advances in Large Scale Simulation," Proceedings of SciDAC 2010, Chattanooga, Tennessee, July 2010.

J. Bell, M. S. Day, X. Gao, M. J. Lijewski, "Simulation of Nitrogen Emissions in a Low Swirl Burner," Proceedings of SciDAC 2010, Chattanooga, Tennessee, July 2010. [pdf]

A. Nonaka, A.S. Almgren, J. B. Bell, M. J. Lijewski, C. M. Malone, and M. Zingale, "MAESTRO: An Adaptive Low Mach Number Hydrodynamics Algorithm for Stellar Flows", Astrophysical Journal Supplement Series, 188, 358-383, June 2010. [pdf]

A. S. Almgren, V.E. Beckner, J.B. Bell, M.S. Day, L.H. Howell, C.C. Joggerst, M.J. Lijewski, A. Nonaka, M. Singer, M. Zingale, "CASTRO: A New Compressible Astrophysical Solver. I. Hydrodynamics and Self-Gravity", Astrophysical Journal, 715 1221-1238, June 2010. [pdf]

M. S. Day, and J. B. Bell, "Turbulence-flame interaction in lean premixed hydrogen", submitted for publication. [pdf]

A. Donev, J. B. Bell, A. L. Garcia, and B. J. Alder, "A hybrid particle-continuum method for hydrodynamics of complex fluids", SIAM J. Multiscale Modeling and Simulation, 8(3):871-911, 2010. [pdf]

G. S. H. Pau, J. B. Bell, K. Pruess, A. S. Almgren, M. J. Lijewski, K. Zhang, "High resolution simulation and characterization of density-driven flow in CO2 storage in saline aquifers'', Advances in Water Resources , 33(4):443-455, 2010. [pdf]

A. J. Aspden, M. S. Day, and J. B. Bell, "Characterization of Low Lewis Number Flames", accepted for publication in the Proceedings of the Combustion Institute. [pdf]

A. J. Aspden, M. S. Day, and J. B. Bell, "Lewis Number Effects in Distributed Flames", accepted for publication in the Proceedings of the Combustion Institute. [pdf]

M.S. Day, J.B. Bell, X. Gao and P. Glarborg "Numerical Simulation of Nitrogen Oxide Formation in Lean Premixed Turbulent Flames", accepted for presentation at the 33rd International Symposium on Combustion. [pdf]

M. S. Day, X. Gao, and J. B. Bell, "Properties of Lean Turbulent Methane-Air Flames with Significant Hydrogen Addition", accepted for publication in Proceedings of the Combustion Institute. [pdf]

M. Zingale, A. S. Almgren, J. B. Bell, A. Nonaka, and S. E. Woosley, "Low Mach Number Modeling of Type Ia Supernovae. IV. White Dwarf Convection", Astrophysical Journal, 704, 196-210, 2009. [pdf]

G. S. H. Pau, J. B. Bell, K. Pruess, A. S. Almgren, M. J. Lijewski, K. Zhang, "Numerical studies of density-driven flow in CO2 storage in saline aquifers", Proceedings of TOUGH Symposium, September 14-16 2009, Berkeley, California, USA. [pdf]

G. S. H. Pau, A. S. Almgren, J. B. Bell, M. J. Lijewski, E. Sonnenthal, N. Spycher, T. Xu, G. Zhang, "A Parallel Second-Order Adaptive Mesh Algorithm for Reactive Flow in Geochemical Systems", Proceedings of TOUGH Symposium, September 14-16 2009, Berkeley, California, USA. [pdf]

A. Donev, E. Vanden-Eijnden, A. Garcia, and J. Bell, ``On the Accuracy of Explicit Finite-Volume Schemes for Fluctuating Hydrodynamics,'' Communications in Applied Mathematics and Computational Science, 5(2):149-197, 2010. [pdf]

C. C. Joggerst, A. Almgren, J. Bell, Alexander Heger, Daniel Whalen, and S. E. Woosley, "Primordial Core-Collapse Supernovae and the Chemical Abundances of Metal-Poor Stars," Astrophysical Journal, 709, 11-26, January 2010.

G. S. H. Pau, A. S. Almgren, J. B. Bell, and M. J. Lijewski, "A Parallel Second-Order Adaptive Mesh Algorithm for Incompressible Flow in Porous Media", Phil. Trans. R. Soc. A 367, 4633-4654, 2009. LBNL Report LBNL-176E. [pdf]

S.E. Woosley, A.S. Almgren, A.J. Aspden, J.B. Bell, D. Kasen, A.R. Kerstein, H. Ma, A. Nonaka and M. Zingale, "Type Ia Supernovae: Advances in Large Scale Simulation ", SciDAC 2009, J. of Physics: Conference Series, 180, July 2009. [pdf]

A. S. Almgren, J. B. Bell, A. Nonaka, M. Zingale, "A New Low Mach Number Approach in Astrophysics", Computing in Science and Engineering, vol. 11, no. 2, pp. 24-33, March/April 2009. [CiSE]

S. E. Woosley, D. Kasen, H. Ma, G. Glatzmaier, A. J. Aspden, J. B. Bell, M. S. Day, A. R. Kerstein, V. Sankaran, F. Ropke, "Type Ia Supernovae", Proceedings of Science, 10th Symposium on Nuclei in the Cosmos, July 27 - August 1 2008, Mackinac Island, Michigan, USA. [pdf]

M. Zingale, A. S. Almgren, J. B. Bell, C. M. Malone and A. Nonaka, "Astrophysical Applications of the MAESTRO Code", SciDAC 2008, J. of Physics: Conference Series, 125, Seattle Washington, July 2008. [pdf]

J. B. Bell, R. K. Cheng, M. S. Day, V. E. Beckner, M. J. Lijewski, "Interaction of Turblence and Chemistry in a Low Swirl Burner", SciDAC 2008, J. of Physics: Conference Series, Seattle Washington, July 2008. [pdf]

S. E. Woosley, A. J. Aspden, J. B. Bell, A. R. Kerstein, and V. Sankaran, "Numerical simulation of low Mach number reacting flows", SciDAC 2008, J. of Physics: Conference Series, 125, Seattle Washington, July 2008. [pdf]

A. S. Almgren, J. B. Bell, A. Nonaka, and M. Zingale, "Low Mach Number Modeling of Type Ia Supernovae. III. Reactions", Astrophysical Journal, 684, 449-470, 2008. [pdf]

M. Day, J. Bell, P.-T. Bremer, V. Pascucci, V. Beckner, M. Lijewski, "Turbulence effects on cellular burning structures in lean premixed hydrogen flames", Combustion and Flame156 1035-1045 (2009). DOI 10.1016/j.combustflame.2008.10.029

J. B. Bell, A. L. Garcia, S. A. Williams, "Computational fluctuating fluid dynamicss", to appear in ESAIM: Mathematical Modelling and Numerical Analysis. [pdf]

D.E.A. van Odyck, J.B. Bell, F. Monmont, N. Nikiforakis, "Mathematical structure porous media flow]{The mathematical structure of multiphase thermal models of flow in porous media", to appear in Proc. Royal Soc. A. [pdf]

J. F. Grcar, J. B. Bell, M. S. Day, "The Soret Effect in Naturally Propagating, Premixed, Lean, Hydrogen-Air Flames", LBNL Report LBNL-669E, Proc. Combust. Inst., 32 pp. 1173-1180. [pdf]

A. J. Aspden, J. B. Bell, M. S. Day, S. E. Woosley, M. Zingale, "Turbulence-Flame Interactions in Type Ia Supernovae", Astrophysical Journal, 689, pp.1173-1185, December 20, 2008. [pdf]

S. A. Williams, J. B. Bell, and A. L. Garcia, "Algorithm refinement for fluctuating hydrodynamics", Multiscale Model. Simul. 6, 1256-1280, 2008. [pdf]

A. J. Aspden, N. Nikiforakis, S. B. Dalziel, and J.B.Bell, "Analysis of Implicit LES Methods", Communications in Applied Mathematics and Computational Science, 3, pp.103-126, 2008. [CAMCoS]

A.S. Almgren, J.B. Bell, and M. Zingale, "MAESTRO: A Low Mach Number Stellar Hydrodynamics Code ", SciDAC 2007, J. of Physics: Conference Series, Boston, Massachusetts, July 2007.

J. Bell, A. Aspden, M. Day, M. Lijewski, "Numerical simulation of low Mach number reacting flows", SciDAC 2007, J. of Physics: Conference Series, Boston, Massachusetts, July 2007. LBNL Report No. LBNL-63088.

S.E. Woosley, A.S. Almgren, J.B. Bell, G. Glatzmaier, D. Kasen, A.R. Kerstein, H. Ma, P. Nugent, F. Ropke, V. Sankaran and M. Zingale, "Type Ia Supernovae ", SciDAC 2007, J. of Physics: Conference Series, Boston, Massachusetts, July 2007.

John B. Bell, Alejandro L. Garcia and Sarah A. Williams, "Numerical Methods for the Stochastic Landau-Lifshitz Navier-Stokes Equations", Phys. Rev. E 76, 016708, 2007. [pdf]

J. Bell, M. Day, A. Almgren, M. Lijewski, C. Rendleman, R. Cheng, I. Shepherd, "Simulation of Lean Premixed Turbulent Combustion ", SciDAC 2006, J. of Physics: Conference Series, (William Tang, Ed.), Denver, Colorado, 46, 1-15, 2006. [pdf]

M. Day and J. Bell, "Simulation of premixed turbulent flames", SciDAC 2006, J. of Physics: Conference Series, (William Tang, Ed.), Denver, Colorado, 46, 43-47, 2006. [pdf]

A. S. Almgren, J. B. Bell, C. A. Rendleman, and M. Zingale, "Low Mach Number Modeling of Type Ia Supernovae. II. Energy Evolution", Astrophysical Journal, 649, 927-938, 2006. LBNL Report LBNL-58673 Pt. II. [pdf]

A. S. Almgren, J. B. Bell, C. A. Rendleman, and M. Zingale, "Low Mach Number Modeling of Type Ia Supernovae. I. Hydrodynamics", Astrophysical Journal, 637, 922-936, 2006. LBNL Report LBNL-58673. [pdf](revised)

M. S. Day, J. B. Bell, J. F. Grcar and M. J. Lijewski, "Equivalence Ratio Effects in Turbulent, Premixed Methane-Air Flames", LBNL Report LBNL-59246, in press - Proc. ECCOMAS-CFD 2006. [pdf]

J. B. Bell, M. S. Day, I. G. Shepherd, M. Johnson, R. K. Cheng, J. F. Grcar, V. E. Beckner, M. J. Lijewski, "Numerical Simulation of a Laboratory-Scale Turbulent V-flame", LBNL Report LBNL-54198-Journal, Proc. Natl. Acad. Sci. USA, 102(29) 10006-10011, 2005. [pdf]

J. B. Bell, J. Foo, and A. L. Garcia, "Algorithm Refinement for the Stochastic Burgers' Equation", J. Comp. Phys., 223, pp. 603-708, 2006. [pdf]

J. B. Bell, R. K. Cheng, M. S. Day and I. G. Shepherd, "Numerical Simulation of Lewis Number Effects on Lean Premixed Turbulent Flames", LBNL Report LBNL-59247, Proc. Combust. Inst.,31 1309-1317 (2007). [pdf]

J. B. Bell, M. S. Day, J. F. Grcar, and M. J. Lijewski, "Active Control for Statistically Stationary Turbulent Premixed Flame Simulations", LBNL Report LBNL-58751, Communications in Applied Mathematics and Computational Science, 1, 29-51, 2006. [pdf]

J. B. Bell, M. S. Day, J. F. Grcar, M. J. Lijewski, J. F. Driscoll and S. F. Filatyev, "Numerical Simulation of a Laboratory-Scale Turbulent Slot Flame", LBNL Report LBNL-59245, Proc. Combust. Inst., 31 1299-1307 (2007). [pdf]

M. Zingale, S. E. Woosley, C.A. Rendleman, M. S. Day, and J. B. Bell, "Three-dimensional Numerical Simulations of Rayleigh-Taylor Unstable Flames in Type Ia Supernovae", LBNL Report LBNL-56966, accepted, Astrophysical Journal, 2005. [pdf]

M. S. Day, J. B. Bell, J. F. Grcar, V. E. Beckner, "Numerical Control of 3D Turbulent Premixed Flame Simulations", LBNL Report LBNL-56882 Ext. Abs., submitted 20th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 31-August 5, 2005. [pdf]

J. F. Grcar, M. S. Day, J. B. Bell, "A Taxonomy of Integral Reaction Path Analysis", LBNL Report LBNL-56772, in press - Combust. Theory Modelling, 2004. [pdf]

J. B. Bell, M. S. Day, and J. F. Grcar, M. J. Lijewski, "Stochastic Algorithms for the Analysis of Numerical Flame Simulations", LBNL Report LBNL-49326-Journal, J. Comp. Phys., 202, 262-280, 2004. [pdf]

J. B. Bell, "AMR for low Mach number reacting flows", LBNL Report LBNL-54351, Proceedings of the Chicago Workshop on Adaptvie Mesh Refinement Methods, 2003. [pdf]

J. B. Bell, M. S. Day, C. A. Rendleman, S. E. Woosley, and M. A. Zingale, "Direct Numerical Simulations of Type Ia Supernovae Flames II: The Rayleigh-Taylor Instability", LBNL Report LBNL-54300, Astrophysical Journal, 608, 883-906, 2004. [pdf]

J. F. Grcar, P. Glarborg, J. B. Bell, M. S. Day, A. Loren, and A. D. Jenson, "Effects of Mixing on Ammonia Oxidation in Combustion Environments at Intermediate Temperatures", LBNL Report LBNL-54187, Proceedings of the Combustion Institute, 2003. [pdf]

J. B. Bell, M. S. Day, C. A. Rendleman, S. E. Woosley, and M. A. Zingale, "Direct Numerical Simulations of Type Ia Supernovae Flames I: The Landau-Darrieus Instability", LBNL Report LBNL-54088, Astrophysical Journal, 606, 1029-1038, 2004. [pdf]

J. B. Bell, M. S. Day, C. A. Rendleman, S. E. Woosley, and M. A. Zingale, "Adaptive low Mach number simulations of nuclear flames", J. Comp. Phys, 195, 677-694, 2004. [pdf]

J. B. Bell, M. S. Day, A. S. Almgren, R. K. Cheng and I. G. Shepherd, "Numerical Simulation of Premixed Turbulent Methane Combustion", Proceedings of the Second MIT Conference on Computational Fluid and Solid Mechanics, June 17-20, 2003. [pdf]

J. B. Bell, M. S. Day, J. F. Grcar, M. J. Lijewski, M. Johnson, R. K. Cheng, I. G. Shepherd, "Numerical Simulation of a Premixed Turbulent V-Flame", 19th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 27-August 1, 2003. [pdf]

J. F. Grcar, M. S. Day and J. B. Bell, "Conditional and opposed reaction path diagrams for the analysis of fluid-chemistry interactions", 19th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 27-August 1, 2003.

J. B. Bell, M. S. Day, J. F. Grcar, M. J. Lijewski, "Analysis of carbon chemistry in numerical simulations of vortex flame interactions", 19th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 27-August 1, 2003. [pdf]

N. Sullivan, A. D. Jensen, P. Glarborg, M. S. Day, J. F. Grcar, J. B. Bell, C. J. Pope, and R. J. Kee, "Ammonia Conversion and NOx Formation in Laminar Coflowing Nonpremixed Methane-Air Flames", LBNL Report LBNL-49347, Combustion and Flame 131(3):285-298 (2002). [pdf]

J. B. Bell, M. S. Day, J. F. Grcar, W. G. Bessler, C. Shultz, P. Glarborg, and A. D. Jensen, "Detailed Modeling and Laser-Induced Fluorescence Imaging of Nitric Oxide in an NH3-seeded non-premixed methane/air flame", LBNL Report LBNL-49333, Proceedings of the Combustion Institute, 29:2195-2202 (2002). [pdf]

J. B. Bell, M. S. Day, and J. F. Grcar, "Numerical Simulation of Premixed Turbulent Methane Combustion", LBNL Report LBNL-49331, Proceedings of the Combustion Institute, 29:1987-1993 (2002). [pdf]

J. B. Bell, M. S. Day, and J. F. Grcar, "Stochastic Algorithms for the Analysis of Numerical Flame Solutions", LBNL Report LBNL-49326, 2002. [pdf]

J. B. Bell, M. S. Day, A. S. Almgren, M. J. Lijewski, and C. A. Rendleman, "A Parallel Adaptive Projection Method for Low Mach Number Flows", International Journal for Numerical Methods in Fluids, 40:209-216, 2002. Also appears in Numerical Methods for Fluid Dynamics VII, Proceedings of the 7th International Conference on Numerical Methods for Fluid Dynamics (ICFD 2001), Oxford University, March 26-29, 2001.

J. B. Bell, M. S. Day, A. S. Almgren, M. J. Lijewski, and C. A. Rendleman, "Adaptive numerical simulation of turbulent premixed combustion", Proceedings of the First MIT Conference on Computational Fluid and Solid Mechanics, June 11-15, 2001. [ps.gz]

J. B. Bell, M. S. Day, V. E. Beckner, A. L. Kuhl, P. Neuwald and H. Reichenbach "Simulations of shock-induced mixing and combustion of an acetylene cloud in a chamber", 18th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 29-August 3, 2001.

J. B. Bell, M. S. Day, J. F. Grcar and A. E. Lutz "Turbulent combustion of spherical fuel-rich hydrogen pockets", 18th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 29-August 3, 2001.

A. S. Almgren, J. B. Bell, and W. Y. Crutchfield, ``Approximate Projection Methods: Part I. Inviscid Analysis,'' LBNL Report LBNL-43374, SIAM J. Sci. Comput., 22:4, pp. 1139-59, 2000. [ps.gz]

J. Bell, A. Chorin and W. Crutchfield ``Stochastic optimal prediction with application to Averaged Euler equations'' Proc. 7th Nat. Conf. Comput. Fluid Mech., (C.A. Lin, Ed.), Pingtung, Taiwan, (2000), pp. 1-13. [bcc00_1.ps.gz]

M. S. Day and J. B. Bell ``Numerical Simulation of Laminar Reacting Flows with Complex Chemistry'' Combust. Theory Modelling 4(4) pp.535-556 (also appears as LBNL Report LBNL-44682) [pdf]

J. B. Bell, N. J. Brown, M. S. Day, M. Frenklach, J. F. Grcar and S. R. Tonse ``The Effect of Stoichiometry on Vortex Flame Interactions,'' LBNL Report LBNL-44730, Proceedings of the Combustion Institute, 28 (2000). [pdf]

J. B. Bell, N. J. Brown, M. S. Day, M. Frenklach, J. F. Grcar, R. M. Propp and S. R. Tonse ``Scaling and Efficiency of PRISM in Adaptive Simulations of Turbulent Premixed Flames,'' LBNL Report LBNL-44732, Proceedings of the Combustion Institute, 28 (2000). [LBNLreport.ps.gz] [Abstract(html)]

D. S. Nolan, A. S. Almgren, and J. B. Bell, ``High Reynolds Number Simulations of Axisymmetric Tornado-like Vortices with Adaptive Mesh Refinement,'' LBNL Report LBNL-42860. [paper.ps.gz] [Abstract(html)]

A. S. Almgren, J. B. Bell, and W. Y. Crutchfield, ``Approximate Projection Methods: Part I. Inviscid Analysis,'' SIAM J. Sci. Comput., 22:4, pp. 1139-59, 2000. Also LBNL Report LBNL-43374. [paper.ps.gz]

A. L. Garcia, J. B. Bell, W. Y. Crutchfield, B. J. Alder, ``Adaptive Mesh and Algorithm Refinement'', J. Comp. Phys., 154, pp. 134-155, 1999. [ps.gz]

C. A. Rendleman, V. E. Beckner, M. Lijewski, W. Y. Crutchfield, J. B. Bell, ``Parallelization of Structured, Hierarchical Adaptive Mesh Refinement Algorithms,'' Computing and Visualization in Science,, Volume 3, 2000. [pdf]

G. I. Barenblatt, J. B. Bell, W. Y. Crutchfield, ``The thermal explosion revisited,'' Proceedings of the National Academy, 95, November pp.13384-13386, 1998.

David E. Stevens, John B. Bell, Ann S. Almgren, Vincent E. Beckner, and Charles A. Rendleman, ``Small Scale Processes and Entrainment in a Stratocumulus Marine Boundary Layer'' J. Atmos. Sci., 57:4, pp. 567-581, Feb. 2000. [ps.gz]

R.B. Pember, L.H. Howell, J.B. Bell, P. Colella, W.Y. Crutchfield, W.A. Fiveland, and J.P. Jessee, ``An Adaptive Projection Method for Unsteady, Low-Mach Number Combustion,'' Comb. Sci. Tech., 140, pp. 123-168, 1998.

Ann S. Almgren, John B. Bell, Phillip Colella, Louis H. Howell, Michael L. Welcome, A Conservative Adaptive Projection Method for the Variable Density Incompressible Navier-Stokes Equations, J. Comp. Phys., 142, pp. 1-46, 1998. [Abstract] [Paper(ps.gz)]

E.Gerry Puckett, Ann S. Almgren, John B. Bell, Daniel L. Marcus, William J. Rider, A Higher-Order Projection Method for Tracking Fluid Interfaces in Variable Density Incompressible Flows, J. Comp. Phys., 130, pp. 269-282, 1997. [Abstract]

Ann S. Almgren, John B. Bell, Phillip Colella, Tyler Marthaler A Cartesian Grid Projection Method for the Incompressible Euler Equations in Complex Geometries, SIAM J. Sci. Comp., 18:5, Sept. 1997. [Abstract] [Paper(ps.gz)]

Ann S. Almgren, John B. Bell, Phillip Colella, Tyler Marthaler A Cell-Centered Cartesian Grid Projection Method for the Incompressible Euler Equations in Complex Geometries, Proceedings of the AIAA 12th Computational Fluid Dynamics Conference, June 19-22, 1995, San Diego, CA. [Abstract] [Paper(ps.gz)]

Richard B. Pember, Ann S. Almgren, John B. Bell, Phillip Colella, Louis Howell, Mindy Lai, A Higher-Order Projection Method for the Simulation of Unsteady Turbulent Nonpremixed Combustion in an Industrial Burner,, Transport Phenomena in Combustion, Taylor and Francis, publ., July 1996. [Abstract] [Preprint] [fig. 2,3] [fig. 4] [Paper(ps.gz)]

R.B. Pember, P. Colella, L.H. Howell, A.S. Almgren, J.B. Bell, W. Y. Crutchfield, V.E. Beckner, K.C. Kaufman, W.A. Fiveland, J.P. Jessee, The Modeling of a Laboratory Natural Gas-Fired Furnace with a Higher-Order Projection Method for Unsteady Combustion, Technical Report UCRL-JE-123244, LLNL, February 1996. Twenty-sixth International Symposium on Combustion,Naples, Italy, July 28 - August 2, 1996. [Abstract(ps.gz)] [Paper(ps.gz)] [Poster session(ps.gz)]

Mark M. Sussman, Ann S. Almgren, John B. Bell, Phillip Colella, Louis H. Howell, Michael Welcome, An Adaptive Level Set Approach for Incompressible Two-Phase Flows, LBNL-40327, J. Comp. Phys., 148, pp. 81-124, 1999. [Paper(ps.gz)]

Mark M. Sussman, Ann S. Almgren, John B. Bell, Phillip Colella, Louis H. Howell, Michael Welcome, An Adaptive Level Set Approach for Incompressible Two-Phase Flows, Proceedings of the ASME Fluids Engineering Summer Meeting: Forum on Advances in Numerical Modeling of Free Surface and Interface Fluid Dynamics, San Diego, CA, July 7-11, 1996. [Abstract]

Richard B. Pember, Ann S. Almgren, William Y. Crutchfield, Louis H. Howell, John B. Bell, Phillip Colella, and Vincent E. Beckner, An Embedded Boundary Method for the Modeling of Unsteady Combustion in an Industrial Gas-Fired Furnace, Technical Report UCRL-JC-122177, LLNL, October 1995. Proceedings of the 1995 Fall Meeting of the Western States Section of the Combustion Institute,, Stanford, CA, October 30-31, 1995. [Paper(ps.gz)] [Abstract(ps.gz)]

Ann S. Almgren, John B. Bell, Phillip Colella, Louis H. Howell, Michael Welcome, A High-Resolution Adaptive Projection Method for Regional Atmospheric Modeling, Proceedings of the NGEMCOM Conference sponsored by the U.S. EPA, August 7-9, 1995, Bay City, MI. [Abstract]

Ann S. Almgren, John B. Bell, Louis H. Howell, Phillip Colella, An Adaptive Projection Method for the Incompressible Navier-Stokes Equations, Proceedings of the IMACS 14th World Conference, July 11-15, 1994, Atlanta, GA. [Abstract]

Ann S. Almgren, John B. Bell, Phillip Colella, Louis H. Howell, An Adaptive Projection Method for the Incompressible Euler Equations, Proceedings of the AIAA 11th Computational Fluid Dynamics Conference, July 6-9, 1993, Orlando, FL. [Abstract]

Ann S. Almgren, John B. Bell, William G. Szymczak, A Numerical Method for the Incompressible Navier-Stokes Equations Based on an Approximate Projection, SIAM J. Sci. Comp.,17:2, March 1996. [Abstract]

D.L. Marcus, R.B. Pember, J.B. Bell, V.E. Beckner, D. Simkins, M.L. Welcome, Multidimensional numerical simulation of a pulse combustor, AIAA 94-2315, Proceedings of the 25th AIAA Fluid Dynamics Conference, Colorado Springs, CO, June 20-23, 1994, submitted to Comb. Sci. Tech.

J.A. Greenough, V. Beckner, R. B. Pember, W. Y. Crutchfield, J.B. Bell, and P. Colella, An Adaptive Multifluid Interface-Capturing Method for Compressible Flow in Complex Geometries, UCRL-JC-118609, April, 1995, Proceedings of the 12th AIAA CFD Conference, San Diego, CA, June 19-22, 1995. [Abstract(ps.gz)]

J.A. Greenough, J.B. Bell, P. Colella, and E.G. Puckett, A Numerical Study of Shock-Induced Mixing of a Helium Cylinder: Comparison with Experiment, Proceedings of the 20th International Symposium on Shock Waves.

E. Steinthorsson, D. Modiano, W. Y. Crutchfield, J. B. Bell, and P. Colella, An adaptive semi-implicit scheme for simulations of unsteady viscous compressible flow, Proceedings of the 12th AIAA CFD Conference, San Diego, CA, June 19-22, 1995.

D.L. Marcus, R.B. Pember, J.B. Bell Induction time effects in pulse combustors, AIAA 95-0875, 33rd Aerospace Sciences Meeting, Reno, NV, Jan. 9-12, 1995.

L. H. Howell and J. B. Bell, An Adaptive-Mesh Projection Method for Viscous Incompressible Flow, SIAM J. Sci. Comp., 18, No. 4, pp. 996-1013, July 1997. [Abstract]

J. Bell, M. Berger, J. Saltzman, M. Welcome, Three Dimensional Adaptive Mesh Refinement for Hyperbolic Conservation Laws, SIAM J. Sci. Stat. Comput., January 1994.

J. B. Bell, J. M. Solomon, and W. G. Szymczak, A Projection Method for Viscous Incompressible Flow on Quadrilateral Grids, AIAA J., 32:1961--1969, 1994.

W.Y. Crutchfield and J.B. Bell, Instabilities of the Skyrme Model, J. Comp. Phys., 110:234-241, 1994 .

R. B. Pember, J. B. Bell, P. Colella, W. Y. Crutchfield, and M. L. Welcome, An adaptive Cartesian grid method for for unsteady compressible flow in complex geometries, J. Comp. Phys., 120:2, pp 278-304, 1995.

M. Lai, J. B. Bell and P. Colella, A Projection Method for Combustion in the Zero Mach Number Limit, Proceedings of the 11th AIAA CFD Conference, Orlando, Florida, July 1993.

R. B. Pember, J. B. Bell, P. Colella, W. Y. Crutchfield, and M. L. Welcome, Adaptive Cartesian grid methods for representing geometry in inviscid compressible flow, Proceedings of the 11th AIAA CFD Conference, Orlando, Florida, July 1993.

J. A. Greenough and J. B. Bell, Direct Simulation of a Shock-Induced Mixing Layer, Proceedings of the 4th International Workshop on Physics of Compressible Turbulent Mixing, Cambridge, England, March 1993.

R. I. Klein, J. B. Bell, R. B. Pember, T. Kelleher, Three Dimensional Hydrodynamic Calculations with Adaptive Mesh Refinement of the Evolution of Rayleigh Taylor and Richtmyer Meshkov Instabilities in Converging Geometry: Multi-Mode Perturbations, Proceedings of the 4th International Workshop on Physics of Compressible Turbulent Mixing, Cambridge, England, March 1993.

J.B. Bell and D.L. Marcus, Vorticity Intensification and Transition to Turbulence in a Three-Dimensional Euler Equations, Comm. Math. Phys., 147:371-394, 1992.

D. L. Marcus and J. B. Bell, The Structure and Evolution of the Vorticity and Temperature Fields in Thermals, Theor. and Comp. Fluid Dynamics, 3:327-344, 1992.

A. L. Kuhl, J. B. Bell, R. E. Ferguson, K.-Y. Chien and J. P. Collins, Evolution of Reactants Volume in Turbulent Jets, Twenty-Fourth Symposium (Internation) on Combustion, published by the Combustion Institute, 77-82, 1992.

J. B. Bell and D. L. Marcus, A Second-Order Projection Method for Variable Density Flows, J. Comp. Phys., 101:334-348,1992.

D.L. Marcus, E.G. Puckett, J.B. Bell, and J. Saltzman, Numerical Simulation of Accelerated Interfaces, Proceedings of the 3rd International Workshop on the Physics of Compressible Turbulent Mixing, R. Dautray, editor, pp. 63--81, Royaumont, France, 1991.

J. Bell, P. Colella, and L. Howell, An efficient second-order projection method for viscous incompressible flow, Proceedings of the 10th AIAA Computational Fluid Dynamics Conference, Honolulu, June 24-26, 1991.

J. Bell, P. Colella, and M. Welcome, Conservative Front-Tracking for Inviscid Compressible Flow, Proceedings of the 10th AIAA Computational Fluid Dynamics Conference, Honolulu, June 24-26, 1991.

D. L. Marcus and J. B. Bell, Numerical simulation of a viscous vortex ring interaction with a density interface, Phys. Fluids A, 6(4), 1994, 1505-1515.

I. I. Glass, J. Kaca, D. L. Zhang, H. M. Glaz, J. B. Bell, J. A. Trangenstein, and J. P. Collins, Diffraction of Planar Shock Waves over Half-Diamond and Semicircular Cylinders: An Experimental and Numerical Comparison, Proceedings of the 17th International Symposium on Shock Waves and Shock Tubes, July 17-21, 1989, Lehigh University.

J. B. Bell, J. M. Solomon and W. G. Szymczak, A Second-order Projection Method for the Incompressible Navier-Stokes Equations on Quadrilateral Grids, Proceedings of the AIAA 9th Computational Fluid Dynamics Conference, Buffalo, New York, June 14-16, 1989.

J. B. Bell, P. Colella, J. A. Trangenstein and M. Welcome, Adaptive Mesh Refinement on Moving Quadrilateral Grids, Proceedings of the AIAA 9th Computational Fluid Dynamics Conference, Buffalo, New York, June 14-16, 1989.

J. B. Bell, H. M. Glaz, J. M. Solomon and W. G. Szymczak, "Application of a Second-order Projection Method to the Study of Shear Layers," Proceedings of the 11th International Conference on Numerical Methods in Fluid Dynamics, Williamsburg, Va., June 27-July 1, 1988.

J. B. Bell, P. Colella, J. A. Trangenstein and M. Welcome, Godunov Methods and Adaptive Algorithms for Unsteady Fluids Dynamics, Proceedings of the 11th International Conference on Numerical Methods in Fluid Dynamics, Williamsburg, Va., June 27-July 1, 1988.

J. B. Bell, P. Colella, and H. M. Glaz, A Second-Order Projection Method for the Incompressible Navier-Stokes Equations, J. Comp. Phys., Vol. 85, p. 257-283.

J. B. Bell, P. Colella and J. A. Trangenstein, Higher-Order Godunov Methods for Systems of Hyperbolic Conservation Laws, UCRL-97258, August 1987, J. Comp. Phys., Vol. 82, p. 362-397.

J. B. Bell, C. N. Dawson and G. R. Shubin, An Unsplit Higher Order Godunov Method for Scalar Conservation Laws in Multiple Dimensions, J. Comp. Phys., Vol. 74, No. 1, p. 362-397, 1988.

J. B. Bell, P. Colella, J. Trangenstein, and M. Welcome, Adaptive Methods for High Mach Number Reacting Flow, AIAA paper 87-1168-CP, Proceedings of the AIAA 8th Computational Fluid Dynamics Conference, Honolulu, Hawaii, June 9-11, 1987, p. 717-725.

J. B. Bell, P. Colella, and H. M. Glaz, A Second-Order Projection Method for Viscous, Incompressible Flow, AIAA paper 87-1776-CP, Proceedings of the AIAA 8th Computational Fluid Dynamics Conference, Honolulu, Hawaii, June 9-11, 1987, p. 789-794.

W. G. Szymczak, J. M. Solomon, A. E. Berger, J. B. Bell and J. E. Osborn, Numerical Solutions for Laminar Flow Over a Backward-Facing Step, 6th IMACS International Symposium on Computer Methods for PDEs, Bethelehem, PA, June 23-26, 1987.

W. G. Szymczak, J. M. Solomon, A. E. Berger and J. B. Bell, Multiple Discrete Solutions of the Incompressible Steady-State Navier-Stokes Equations, UCRL-86765, June, 1987, to appear in Numerische Mathematik.

J. A. Trangenstein and J. B. Bell, Mathematical Structure of Compositional Reservoir Simulation, SIAM J. Sci. Stat. Comput., Vol. 10, p. 817-845.

J. A. Trangenstein and J. B. Bell, Mathematical Structure of Black-Oil Reservoir Simulation, SIAM J. Appl. Math., Vol. 49, p. 749-783.

G. R. Shubin and J. B. Bell, A Modified Equation Approach to Constructing Fourth Order Schemes for Acoustic Wave Propagation, SIAM J. Sci. Stat. Comput., Vol. 8, No. 2, pp 135-151, 1987.

J. B. Bell, J. A. Trangenstein, and G. R. Shubin, Conservation Laws of Mixed Type Describing Three-Phase Flow in Porous Media, SIAM J. Appl. Math., Vol. 46, No. 6, pp. 1000-1017, 1986.

J. B. Bell, G. R. Shubin, and J. A. Trangenstein, A Method for Reducing Numerical Dispersion in Two-Phase Black-Oil Reservoir Simulation, J. Comp. Phys., Vol. 65, No. 1, pp. 71-106, 1986.

J. B. Bell and G. R. Shubin, Higher Order Godunov Methods for Reducing Numerical Dispersion in Reservoir Simulation, SPE Paper 3514, Proceedings of the Eighth SPE Symposium on Reservoir Simulation, Dallas, TX, Feb. 10-13, 1985.

G. R. Shubin and J. B. Bell, An Analysis of the Grid Orientation Effect in Numerical Simulation of Miscible Displacement, Computer Methods in Applied Mechanics and Engineering, Vol. 47, No. 1-2, Dec. 1984, pp. 47-71.

J. B. Bell, G. R. Shubin and M. F. Wheeler, Analysis of a New Method for Computing the Flow of Miscible Fluids in a Porous Media, SIAM J. Numer. Anal., Dec. 1985.

J. B. Bell and G. R. Shubin, An Adaptive Grid Finite Difference Method for Conservation Laws, J. Comp. Phys., 52:3, Dec. 1983, pp. 569-591.

A. Stephen, J. Bell, J. Solomon, and L. Hackerman, A Discrete Galerkin formulation for the Incompressible Navier-Stokes Equations, J. Comp. Phys., 53:1, Jan. 1984, pp. 152-172.

G. R. Shubin, A. B. Stephens and J. B. Bell, Three Dimensional Grid Generation Using Biharmonics, Numerical Grid Generation, Joe F. Thompson, editor, Elsevier, New York, 1982, pp. 761-774.

J. B. Bell, G.R. Shubin and J. M. Solomon, Fully Implicit Shock Tracking, J. Comp. Phys., 48:2, Nov. 1982, pp. 222-245.

J. B. Bell, G. R. Shubin and A. B. Stephens, A Segmentation Approach to Grid Generation Using Biharmonics, J. Comp. Phys., 47:3, Oct. 1982, pp. 463-472.

J. B. Bell, R. L. Bell and J. A. Hill, Inverse Solution of the Heat Equation for Reducing Wind-Tunnel Data From Thin-Skin Models, Proceedings of the 2nd Aerothermal Workshop, Williamsburg, Virginia, March 1982.

J. Bell and L. Payne, On the numerical solution of the backward heat equation, Proceedings of the Stefan Banach Institute.

J. Bell, The Noncharacteristic Cauchy Problem for a Class of Equations with Time Dependence, Part I: Problems in One Space Dimension and Part II: Problems in Several Space Dimensions, SIAM J. Math. Anal., 12:5, Sept. 1981, pp. 759-797.

K. Aziz, J. Bell and M. Schneider, Existence and Uniqueness for a Mixed Problem in a Rectangle, Math. Methods in Applied Sciences.

K.-Y. Chien, A. Berger, W. Ragsdale and J. Bell, Free Molecular Flow over a Spinning Cylinder with Heat Transfer, Proceedings of the 11th International Symposium on Rarefied Gas Dynamics, Cannes, July 3-8, 1978.

J. Solomon, M. Ciment, R. Ferguson and J. Bell, Inviscid Flowfield Calculations for Re-entry Vehicles with Control Surfaces, AIAA Journal, Vol. 15, No. 12, Dec. 1977.

S. Leventhal, A. Keel, G. Heiche and J. Bell, An Electrostatic System for Measuring Roll Position on a Supersonic Vehicle, Part I: Theoretical Analysis and Experimental Results, Proceedings of the AIAA 1977 Guidance and Control Conference, Hollywood, Florida, August 1977.