Ishan Srivastava
Postdoctoral Researcher, Applied Mathematics and Computational Research Division
Current Affiliation and Research Interests
I am a postdoctoral researcher at the Center for Computational
Sciences and Engineering (CCSE) in the
Applied Mathematics Department
of the Computing Sciences Area
at the Lawrence Berkeley National Laboratory.
My current research interests lie at the intersection of soft matter, statistical mechanics and continuum mechanics (solid and fluid mechanics). I am particularly interested in developing theory and numerical methods towards predicting the structure and dynamics of complex fluids, soft materials and granular materials, especially in farfromequilibrium conditions.
In the Multiscale Modeling and Stochastic Systems (MuMSS) group at CCSE, I am currently developing numerical simulations of stochastic systems that describe complex fluids at the mesoscale. Two research areas under current investigion are the role of thermal fluctuations in electrokinetic flows at the nanoscale, and transport of gas mixtures across nanoscale membranes.
Previous Research
Previously, I worked as a postdoctoral appointee at the Center for Integrated Nanotechnologies in Sandia National Laboratories with Gary Grest, where I conducted theoretical and numerical investigations of phase transitions in soft and granular materials, and also developed and conducted largescale simulations of mesostructure and electrochemical transport in lithiumion battery electrodes.
I received my PhD in Mechanical Engineering from Purdue University in the summer of 2017 under the supervision of Prof. Tim Fisher. As a part of my graduate research, I investigated the mechanics, rheology and transport in granular materials through numerical simulations. Here is a link to my dissertation.
PeerReviewed Publications
 D. R. Ladiges, J. G. Wang, I. Srivastava, S. P. Carney, A. Nonaka, A. L. Garcia, A. Donev and J. B. Bell,
Modeling Electrokinetic Flows with the Discrete Ion Stochastic Continuum Overdamped Solvent Algorithm,
in review, 2022
[arXiv]
 A. P. Santos, I. Srivastava, L. E. Silbert, J. B. Lechman and G. S. Grest,
Fluctuations and PowerLaw Scaling of Dry, Frictionless Granular Rheology Near the HardParticle Limit,
in review, 2022
[arXiv]
 I. Srivastava, L. E. Silbert, J. B. Lechman and G. S. Grest,
Flow and Arrest in Stressed Granular Materials,
Soft Matter, 18, 735, 2022
[doi]
 W. D. Fullmer, R. Porcu, J. Musser, A. S. Almgren, I. Srivastava,
The Divergence of Nearby Trajectories in SoftSphere DEM
Particuology, 63, 1, 2022.
[doi]
 J. T. Clemmer, I. Srivastava, G. S. Grest, J. B. Lechman,
Shear is Not Always Simple: RateDependent Effects of Loading Geometry on Granular Rheology,
Physical Review Letters, 127, 268003, 2021
[doi]
 I. Srivastava, S. A. Roberts, J. T. Clemmer, L. E. Silbert, J. B. Lechman, G. S. Grest,
Jamming of Bidisperse Frictional Spheres,
Physical Review Research, 3(3), L032042, 2021.
[doi]
 I. Srivastava, L. E. Silbert, G. S. Grest and J. B. Lechman,
Viscometric Flow of Dense Granular Materials under Controlled Pressure and Shear Stress,
Journal of Fluid Mechanics, 907(A18), 1, 2021
[doi]
 A. P. Santos, D. S. Bolintineanu, G. S. Grest, J. B. Lechman, S. J. Plimpton, I. Srivastava, and L. E. Silbert,
Granular Packings with Sliding, Rolling and Twisting Friction,
Physical Review E, 102, 032903, 2020
[doi]
 I. Srivastava, D. S. Bolintineanu, J. B. Lechman and S. A. Roberts,
Controlling Binder Adhesion to Impact Electrode Mesostructure and Transport,
ACS Applied Materials and Interfaces, 12, 34919, 2020.
[doi]
 I. Srivastava, J. B. Lechman, G. S. Grest and L. E. Silbert,
Evolution of Internal Granular Structure at the FlowArrest Transition,
Granular Matter, 22(2), 18, 2020.
[doi]
 J. M. D. Lane, A. P. Thompson, I. Srivastava, G. S. Grest, T. Ao, B. Stoltzfus, K. Austin, H. Fan, D. Morgan, M. D. Knudson,
Scale and Rate in CdS PressureInduced Phase Transition,
AIP Conference Proceedings (Shock Compression of Condensed Matter 2019), 2272(1), 100016, 2020.
[doi]
 I. Srivastava, L. E. Silbert, G. S. Grest and J. B. Lechman,
FlowArrest Transitions in Frictional Granular Matter,
Physical Review Letters, 122(4), 048003, 2019.
[doi]
 I. Srivastava, B. L. Peters, J. M. D. Lane, H. Fan, K. M. Salerno and G. S. Grest,
Mechanics of Gold Nanoparticle Superlattices at High Hydrostatic Pressures,
The Journal of Physical Chemistry C, 123(28), 17530, 2019.
[doi]
 K. M. Salerno, D. S. Bolintineanu, G. S. Grest, J. B. Lechman, S. J. Plimpton, I. Srivastava and L. E. Silbert,
Effect of Shape and Friction on the Packing and Flow of Granular Materials,
Physical Review E, 98(5), 050901, 2018.
[doi]
 J. M. D. Lane, K. M. Salerno, I. Srivastava, G. S. Grest and H. Fan,
Modeling PressureDriven Assembly of Polymer Coated Nanoparticles,
AIP Conference Proceedings (Shock Compression of Condensed Matter 2017), 1979(1), 090007, 2018.
[doi]
 I. Srivastava and T. S. Fisher,
Slow Creep in Soft Granular Packings,
Soft Matter, 13(18), 3411, 2017.
[doi]
 L. Y. Leung, C. Mao, I. Srivastava, P. Du and C. Y. Yang,
Flow Function of Pharmaceutical Powders Is Predominantly Governed by Cohesion, Not by Friction Coefficients,
Journal of Pharmaceutical Sciences, 106(7), 1865, 2017.
[doi]
 R. Kantharaj, I. Srivastava, K. R. Thaker, A. U. Gaitonde, A. Bruce, J. Howarter, T. S. Fisher, A. M. Marconnet,
Thermal Conduction in Graphite FlakeEpoxy Composites using Infrared Microscopy,
Proceedings of the 16th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, 17, 2017.
[doi]
 K. C. Smith, I. Srivastava, T. S. Fisher and M. Alam,
VariableCell Method for StressControlled Jamming of Athermal, Frictionless Grains,
Physical Review E, 89(4), 042203, 2014.
[doi]
 I. Srivastava, S. Sadasivam, K. C. Smith and T. S. Fisher,
Combined Microstructure and Heat Conduction Modeling of Heterogeneous Interfaces and Materials,
Journal of Heat Transfer, 135(6), 061603, 2013.
[doi]
 I. Srivastava, K. C. Smith and T. S. Fisher,
ShearInduced Failure in Jammed Nanoparticle Assemblies,
AIP Conference Proceedings (Powders and Grains 2013), 1542(1), 86, 2013.
[doi]
