3 papers
cs.CE2025
Skeletal Reaction Models for Gasoline Surrogate Combustion
Yinmin Liu, Hessam Babaee, Peyman Givi +2
Skeletal reaction models are derived for a four-component gasoline surrogate model via an instantaneous local sensitivity analysis technique. The sensitivities of the species mass…
physics.flu-dyn2025
On-the-fly Reduced-Order Modeling of the Filter Density Function with Time-Dependent Subspaces
Aidyn Aitzhan, Peyman Givi, Hessam Babaee
A dynamical low-rank approximation is developed for reduced-order modeling (ROM) of the filtered density function (FDF) transport equation, which is utilized for large eddy simulat…
astro-ph.SR2024
Skeletal Kinetics Reduction for Astrophysical Reaction Networks
A. G. Nouri, Y. Liu, P. Givi +2
A novel methodology is developed to extract accurate skeletal reaction models for nuclear combustion. Local sensitivities of isotope mass fractions with respect to reaction rates a…