We are the Computational Physics Group at Georgia Tech! While nano-scale transistors fill warehouse-scale supercomputers, their performance still constrains the 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. Our group develops state-of-the-art computational models and numerical methods to push these applications forward. These formulations leverage domain expertise in physics and biology and data-driven tools like machine learning and data assimilation. We deliver open-source scientific software that utilizes these methods and scales to the world’s largest computers.
Bubble cavitation can ablate kidney stones, but wreaks havoc on marine propellers. We developed a data-driven sub-grid method for simulating this phenomenon. It utilizes a LSTM recurrent neural network 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.
Joint work with MIT SAND group on stable high-order QBMMs is now on arXiv!14 Sept, 2021
Spencer gave an invited talk on GPU acceleration of multiphase CFD at OpenACC summit!1 Sept, 2021
Girish Ganesan (GPU computing) and Sriharsha Kocherla (quantum algorithms) joined the group!15 August, 2021
Anand Radhakrishnan (multiphase flow models) and Scott Sims (multiscale time-steppers) joined the group!