Saurabh S. Sawant

SaurabhSawant@lbl.gov

Addr: Center for Computational Sciences and Engineering,

Lawrence Berkeley National Laboratory,

1 Cyclotron Road,

Berkeley, CA 94720.

I am passionate about tackling complex scientific challenges that have a meaningful and far-reaching impact. Trained as a computational scientist, I thrive on collaborating with experts from varied backgrounds, including theoreticians and experimentalists, to solve challenging problems.

Central to most of my projects is high-performance computing (HPC). Over the past decade, I have honed my skills in developing scalable C++ software tailored for a wide range of scientific applications, spanning from hypersonics to nanoelectronics. My expertise encompasses both particle-based and matrix-based numerical methods, enabling me to address diverse problems.

In my current role as a postdoctoral scholar at the Lawrence Berkeley National Lab, I lead the development of an exascale electrostatic-quantum transport solver for modeling nanomaterials. Leveraging the nonequilibrium Green's function method & HPC, our code enables analysis of charge transport within intricate 3D structures. Prior to this endeavor, I worked on electrodynamic modeling of microelectronic circuits using Maxwell's equations.

I earned my M.S. and Ph.D. in Aerospace Engineering from the University of Illinois Urbana-Champaign, where I worked on modeling hypersonic flows. I led the development of massively scalable software for solving the Boltzmann Transport equation, using the Direct Simulation Monte Carlo (DSMC) method. Using this tool, I studied challenging problems at the intersection of statistical mechanics, hypersonics, and linear stability analysis, such as modeling 3D shock-wave/boundary-layer interactions.

Overview of my projects is provided on the Research page.

news

May 28, 2024	Presented our on-going work on the development of a GPU-accelerated Quantum Transport Framework for Modeling Nanomaterials in the 245th ECS conference.
Jun 12, 2023	Our electrostatic-quantum transport code development effort was presented in IWCN in Barcelona.
Mar 05, 2023	Presented at the APS March meeting in Las Vegas.
Feb 15, 2023	Participated in the Fourth CS-Area Postdoc Symposium at LBNL. (see my talk)

select publications

On the synchronisation of three-dimensional shock layer and laminar separation bubble instabilities in hypersonic flow over a double wedge

Saurabh S. Sawant , V. Theofilis , and D.A. Levin

Journal of Fluid Mechanics, 2022

Bib HTML

@article{sawant_doublewedge_2022,
  title = {On the synchronisation of three-dimensional shock layer and laminar separation bubble instabilities in hypersonic flow over a double wedge},
  author = {Sawant, Saurabh S. and Theofilis, V. and Levin, D.A.},
  journal = {Journal of Fluid Mechanics},
  year = {2022},
  volume = {941},
  pages = {A7},
  doi = {10.1017/jfm.2022.276},
  url = {https://doi.org/10.1017/jfm.2022.276},
}

A kinetic approach to studying low-frequency molecular fluctuations in a one-dimensional shock

Saurabh S. Sawant , Deborah A. Levin , and Vassilios Theofilis

Physics of Fluids, Oct 2021

Bib HTML

@article{sawant_fluctuations_2021,
  title = {{A kinetic approach to studying low-frequency molecular fluctuations in a one-dimensional shock}},
  author = {Sawant, Saurabh S. and Levin, Deborah A. and Theofilis, Vassilios},
  journal = {Physics of Fluids},
  volume = {33},
  number = {10},
  pages = {104106},
  year = {2021},
  month = oct,
  issn = {1070-6631},
  doi = {10.1063/5.0065971},
  url = {https://doi.org/10.1063/5.0065971},
}