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Ann S. Almgren

Group Leader, CCSE

Senior Scientist, Computational Research Division


Contact Information

Ann Almgren
MS 50A-3111
Lawrence Berkeley National Lab
1 Cyclotron Rd.
Berkeley, CA 94720

510-486-5758 (ofc)
510-486-6900 (fax)

ASAlmgren@lbl.gov


CV

Research Interests

  • Low Mach number modeling of Type Ia Supernovae (see MAESTRO)
  • Development of an adaptive-grid Eulerian solver for compressible astrophysical flows (see CASTRO)
  • Development of a new N-body hydro cosmology code (see NYX)
  • And more generally, adaptive projection methods for incompressible and low Mach number flows (see IAMR)

Publications

2017

Muhammad Nufail Farooqi, Didem Unat, Tan Nguyen, Weiqun Zhang, Ann Almgren and John Shalf, "Nonintrusive AMR Asynchrony for Communication Optimization," Euro-Par 2017

Emmanuel Motheau, Ann Almgren, John Bell, "Navier-Stokes Characteristic Boundary Conditions Using Ghost Cells," AIAA J., 2017 [doi]

2016

Brian Friesen, Ann Almgren, Zarija Lukic, Gunther Weber, Dmitriy Morozov, Vincent Beckner, Marcus Day, "In situ and in-transit analysis of cosmological simulations," Computational Astrophysics and Cosmology, 3:4, 2016 [pdf]

D. Unat, T. Nguyen, W. Zhang, M. N. Farooqi, B. Bastem, G. Michelogiannakis, A. Almgren, and J. Shalf, "TiDA: High-Level Programming Abstractions for Data Locality Management," Supercomputing, High Performance Computing: 31st International Conference, ISC High Performance 2016, Springer, pp. 116-135.

A.M. Jacobs, M. Zingale, A. Nonaka, A.S. Almgren, J.B. Bell, "Low Mach Number Modeling of Convection in Helium Shells on Sub-Chandrasekhar White Dwarfs II: Bulk Properties of Simple Models," Astrophysical Journal, 827, 84, 2016. [iop].

Weiqun Zhang, Ann Almgren, Marcus Day, Tan Nguyen, John Shalf, Didem Unat, "BoxLib with Tiling: An AMR Software Framework" SIAM J. Scientific Computing, 38(5):S156-S172 , 2016 [arxiv]

Max P. Katz, Michale Zingale, Alan C. Calder, F. Douglas Swesty, Ann S. Almgren, Weiqun Zhang, "White Dwarf Mergers on Adaptive Meshes. I. Methodology and Code Verification", Astrophysical Journal, 819, 94, 2016. [arxiv]

W. Schmidt, J.F. Engels, J.C. Niemeyer, A.S. Almgren, "Hot and Turbulent Gas in Clusters," Monthly Notices of the Royal Astronomical Society, 459(1), March 2016 [arxiv].

2015

Zarija Lukic, Casey Stark, Peter Nugent, Martin White, Avery Meiksin, Ann Almgren, "The Lyman-alpha forest in optically-thin hydrodynamical simulations," Monthly Notices of the Royal Astronomical Society, 446, 3697-3724, 2015. [arxiv].

W. Schmidt, J. Schulz, L. Iapichino, A.S. Almgren, " Influence of adaptive mesh refinement and the hydro solver on shear-induced mass stripping in a minor merger scenario," Astronomy and Computing, to appear, 2015 [arxiv].

M. Zingale, C. M. Malone, A. Nonaka, A. S. Almgren, and J. B. Bell, "Comparisons of Two- and Three-Dimensional Convection in Type I X-ray Bursts," Astrophysical Journal, 807, 60, 2015 [arxiv].

Max Duarte, Ann S. Almgren, and John B. Bell, "A Low Mach Number Model for Moist Atmospheric Flows," , Journal of the Atmospheric Sciences, 72(4), pp. 1605-1620, 2015 [arxiv].

M. Zingale, A. Jacobs, A. Almgren, J. Bell, A. Nonaka, C. Malone, S. Woosley "Understanding Ignition in Type Ia Supernovae", 25rd International Colloquium on the Dynamics of Explosions and Reactive Systems, Leeds, UK, August 2-7, 2015.

Ke-Jung Chen, Alexander Heger, Stan Woosley, Ann Almgren and Daniel J. Whalen, "Pair-Instability Supernovae of Non-Zero Metallicity Stars," Numerical Modeling of Space Plasma Flows, ASTRONUM-2014, 498, 2015. [arxiv].

2014

Ann Almgren, John Bell, Andy Nonaka and Michael Zingale, "Low Mach Number Modeling of Stratified Flows," Finite Volumes for Complex Applications VII -- Methods and Theoretical Aspects, Springer Proceedings in Mathematics and Statistics, eds. J. Fuhrmann, M. Ohlberger, C. Rohde, Berlin, June 2014.

A. Dubey, A. Almgren, J. Bell, M. Berzins, S. Brandt, G. Bryan, P. Colella, D. Graves, M. Lijewski, F. Loffler, B. O'Shea, E. Schnetter, B. Van Straalen, K. Weide "A Survey of High Level Frameworks in Block-Structured Adaptive Mesh Refinement Packages", Journal of Parallel and Distributed Computing, 74, pp. 3217-3227, 2014 [arxiv] [doi].

H. Braun, W. Schmidt, J.C. Niemeyer, A.S. Almgren, "Large-eddy simulations of isolated disk galaxies with thermal and turbulent feedback," Monthly Notices of the Royal Astronomical Society, 442, pp. 3407-3426, 2014.

C. M. Malone, M. Zingale, A. Nonaka, A. S. Almgren, and J. B. Bell, "Multidimensional Modeling of Type I X-ray Bursts. II. Two-Dimensional Convection in a Mixed H/He Accretor", Astrophysical Journal, 788, 115, 2014. [arxiv]

Ke-Jung Chen, Alexander Heger, Stan Woosley, Ann Almgren, and Daniel Whalen, "Pair Instability Supernovae of Very Massive Population III Stars" Astrophysical Journal, 792, 44, 2014. [arxiv].

Ke-Jung Chen, Alexander Heger, S.E. Woosley, Ann S. Almgren, and Daniel J. Whalen, "Two-Dimensional Simulations of Pulsational Pair-Instability Supernova", Astrophysical Journal, 792, 28, 2014. [arxiv].

Ke-Jung Chen, Alexander Heger, S.E. Woosley, Ann Almgren, and Daniel J. Whalen, and Jarrett L. Johnson, "The General Relativitistic Instability Supernova of a Supermassive Population III Star", Astrophysical Journal, 790, 162, 2014.

Max Duarte, Ann S. Almgren, Kaushik Balakrishnan, John B. Bell, David M. Romps, "A Numerical Study of Methods for Moist Atmospheric Flows: Compressible Equations," Monthly Weather Review, 142, pp. 4269--4283, 2014 [arxiv].

Samuel Williams, Mike Lijewski, Ann Almgren, Brian Van Straalen, Erin Carson, Nicholas Knight, and James Demmel, "s-Step Krylov Subspace Methods as Bottom Solvers for Geometric Multigrid," Proceedings of the 28th IEEE International Parallel & Distributed Processing Symposium, May 2014.

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, 440, pp. 3051-3077, 2014. [arxiv]

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]

2013

Ke-Jung Chen, Alexander Heger, and Ann S. Almgren, "Numerical Approaches for Multidimensional Simulations of Stellar Explosions", Astronomy and Computing, 3-4, pp. 70-78, Nov.-Dec. 2013. [doi]

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.

2012

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]

R. Tiron, A.S. Almgren, R. Camassa, "Shear instability of internal solitary waves in Euler fluids with thin pycnoclines, Journal of Fluid Mechanics,712, 324-361, 2012.

S. Williams, D. Kalamkar, A. Singh, A. Deshpande, B. Van Straalen, M. Smelyanskiy, A. Almgren, P. Dubey, J. Shalf, L. Oliker, "Optimization of Geometric Multigrid for Emerging Multi- and Manycore Processors", accepted for publication in Supercomputing 2012 Conference

Samuel Williams, Dhiraj D. Kalamkar, Amik Singh, Anand M. Deshpande, Brian Van Straalen, Mikhail Smelyanskiy, Ann Almgren, Pradeep Dubey, John Shalf, Leonid Oliker, "Implementation and Optimization of miniGMG - a Compact Geometric Multigrid Benchmark", LBNL 6676E, December 2012.

J. Nordhaus, T.D. Brandt, A. Burrows, A. Almgren, "The Hydrodynamic Origin of Neutron Star Kicks", Monthly Notices of the Royal Astronomical Society, 423, Issue 2, June 2012.

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. [arxiv]

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]

2011

Emmanouela Rantsiou, Adam Burrows, Jason Nordhaus, Ann Almgren, "Induced Rotation in Three-Dimensional Simulations of Core-Collapse Supernovae: Implications for Pulsar Spins," Astrophysical Journal, 732, 57, 2011. [arxiv].

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, Colorado, July 2011. [pdf] [arxiv]

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]

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, 196, 20, (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]

Ke-Jung Chen, Alexander Heger, and Ann Almgren, "Multi-Dimensional Simulations of Pair-Instability Supernovae", Computer Physics Communications, 182:1, 254-256, January 2011. [arxiv].

2010

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].

C. C. Joggerst, A. Almgren, and S. E. Woosley, "Three-dimensional simulations of Rayleigh-Taylor mixing in core collapse supernovae with CASTRO", Astrophysical Journal, 723, 353, October 2010.

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.

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]

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] [arxiv]

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] [IOP] [arxiv]

Ke-Jung Chen, Alexander Heger, and Ann Almgren, "Two Dimensional Simulations of Pair-Instability Supernovae", Conference on The First Stars and Galaxies: Challenges for the Next Decade, Austin, Texas, March 8-11, 2010, Conference Proceedings, published by the American Institute of Physics. [pdf]

2009

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, "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]

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]

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.

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, San Diego, CA, 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]

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", Proc. Royal Soc. A, 2009. LBNL Report LBNL-71465. [pdf]

2008

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]

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. LBNL Report LBNL-58673 Pt. III. [pdf]

1991-2007

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.

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.

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)

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.

Sarah A. Williams, Ann S. Almgren, and E. Gerry Puckett, "On Using a Fast Multipole Method-based Poisson Solver in an Approximate Projection Method", LBNL Report LBNL-59934, March 2006. [pdf]

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. LBNL Report LBNL-43374. [Abstract(html)] [paper.ps.gz]

A. S. Almgren, ``A New Look at the Pseudo-Incompressible Solution to Lamb's Problem of Hydrostatic Adjustment'' J. Atmos. Sci., 57:7, p. 995-998, 2000. [paper.ps.gz] [Abstract(html)]

N. Botta, R. Klein, and A. Almgren, ``Dry Atmosphere Asymptotics,'' PIK Report 55, Potsdam Institut fur Klimafolgenforschung, September 1999. [paper.ps.gz]

N. Botta, R. Klein, and A. Almgren, ``Asymptotic analysis of a dry atmosphere'', Proceedings of the ENUMATH99 Conference,, Jyvaskyla, Finland, July 1999.

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)]

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. [paper.ps.gz]

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.G. 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] [paper] [Figure 3] [Figures 4&5]

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, UCRL-JC-118634, LLNL, December, 1994, Transport Phenomena in Combustion, Taylor and Francis, publ., 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-JC-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)]

Robert Almgren and Ann S. Almgren, Phase Field Instabilities and Adaptive Mesh Refinement, Modern Methods for Modeling Microstructure in Materials, TMS/SIAM, 1996 (Proceedings of TMS meeting, October 1995, Cleveland, OH). [Abstract]

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, 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)]

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]

Ann Almgren, Thomas Buttke, Phillip Colella, A Fast Adaptive Vortex Method in Three Dimensions, J. Comp. Physics, 113:2 , August 1994. [Abstract]

Ann Almgren, Thomas Buttke, and Phillip Colella, A Fast Vortex Method in Three Dimensions, Proceedings of the AIAA 10th Computational Fluid Dynamics Conference, June 24-27, 1991, Honolulu, HI. [Abstract]