3 papers
physics.comp-ph2025
Pyrometheus: Symbolic abstractions for XPU and automatically differentiated computation of combustion kinetics and thermodynamics
Esteban Cisneros-Garibay, Henry Le Berre, Dimitrios Adam +2
The cost of combustion simulations is often dominated by the evaluation of net production rates of chemical species and mixture thermodynamics (thermochemistry). Execution on compu…
cs.LG2024
Soft Checksums to Flag Untrustworthy Machine Learning Surrogate Predictions and Application to Atomic Physics Simulations
Casey Lauer, Robert C. Blake, Jonathan B. Freund
Trained neural networks (NN) are attractive as surrogate models to replace costly calculations in physical simulations, but are often unknowingly applied to states not adequately r…
physics.flu-dyn2023
A free object in a confined active contractile nematic fluid: fixed-point and limit-cycle behaviors
Jonathan B. Freund
Simulations employing the continuum model of Gao et al. [Phy. Rev. Fluids, 2 093302 (2017)] are used to study the transport of an object in a closed two-dimensional container by a…