4 papers
Learning a general class of admissible multi-species collision operators from molecular dynamics
Yue Zhao, Andrew Christlieb, Huan Lei
We develop a structure-preserving, data-driven collision operator for spatially homogeneous multi-species kinetic systems from molecular dynamics (MD). The operator consists of dia…
From molecular dynamics to kinetic models: data-driven generalized collision operators in 1D3V plasmas
Yue Zhao, Guosheng Fu, Huan Lei
We present a data-driven approach for constructing generalized collisional kinetic models for inhomogeneous plasmas in one-dimensional physical space and three-dimensional velocity…
Fast spectral separation method for kinetic equation with anisotropic non-stationary collision operator retaining micro-model fidelity
Yue Zhao, Huan Lei
We present a generalized, data-driven collisional operator for one-component plasmas, learned from molecular dynamics simulations, to extend the collisional kinetic model beyond th…
Data-driven construction of a generalized kinetic collision operator from molecular dynamics
Yue Zhao, Joshua W. Burby, Andrew Christlieb +1
We introduce a data-driven approach to learn a generalized kinetic collision operator directly from molecular dynamics. Unlike the conventional (e.g., Landau) models, the present o…