Nano-scale transistors fill warehouse-scale supercomputers, yet their performance still constrains development of the jets that defend us, the medical therapies our lives depend upon, and the renewable energy sources that will power our generation into the next. The Computational Physics Group at Georgia Tech CSE develops computational models and numerical methods to push these applications forward. We accompany our methods with algorithms crafted to make efficient use of the latest computer architectures, including AMD GPUs, Arm CPUs, FPGAs, and even quantum computers. We develop open-source software for these methods that scales to the world’s largest supercomputers. Check out this website to learn more and visit this page if you’re interested in joining our group.

PI: Spencer Bryngelson
Assistant Professor
College of Computing, CSE
Georgia Tech

Examples of our work

Bubble cavitation can ablate kidney stones, but wreaks havoc on marine propellers. We developed a sub-grid method for simulating this phenomenon. It uses a hybrid quadrature method of moments scheme to close the governing equations at low cost. MFC, our open-source multi-phase flow solver, demonstrates this method. MFC is also capable of fully-resolved multi-phase fluid dynamics via the diffuse-interface method.

The spectral boundary integral method leads to high-fidelity prediction and analysis of blood cells transitioning to chaos in a microfluidic device (above). We developed a low-order model for the cell-scale flow, important for guiding microfluidic device design and improving treatment outcomes.


13 March, 2023 Anand and Henry’s work on near-exascale compressible CFD was presented at the APS March Meeting in a focus session.

26 January, 2023 The 2023 CRNCH Summit is Feb 2-3! Many members of the CPG are presenting posters and many great external scientists giving talks! SHB moderating the SciML panel. (update: photo here)

24 January, 2023 Spencer is giving a talk on competitive optimization methods at the next Lawrence Livermore DDPS Webinar. (Update: video here)

22 January, 2023 Qi Zeng and Yash Kothari’s CPINNs work accepted to ICLR 2023! Joint with Florian Schäfer.

11 January, 2023 The Georgia Tech Open Hackathon official started! SHB organizing with NVIDIA. (story here)

11 January, 2023 Paper on sub-grid moment methods for fully-coupled cavitating flows published in JCP.

02 January, 2023 Group awarded subcontract from Sandia National Lab on bubbly flows. We look forward to the collaboration!

28 December, 2022 Paper on numerics for the 7-equation model with Prof. Menon and Achyut Panchal of GT AE accepted to JCP!

22 November, 2022 CPG attended APS DFD! Were on 10 abstracts in one way or another. Spencer had fun chairing the quantum computing session (standing room only!), where Fatima gave an excellent talk.

18 November, 2022 Ajay Bati pushes the first public release of roseNNa, a fast, portable, and minimally-intrusive neural network inference library for use with Fortran and C.

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