This was part of Computational Challenges and Optimization in Kinetic Plasma Physics

Coupling Vlasov-Fokker-Planck to Radiation-Hydrodynamics for Electron Transport

Mark Sherlock, Lawrence Livermore National Laboratory

Thursday, February 22, 2024


In plasmas created by laser-matter interactions, the electron thermal and magnetic field transport almost always require a kinetic treatment. We will describe progress in coupling a Vlasov-Fokker-Planck description of the electrons to a radiation-hydrodynamics model. The model has been applied to one-dimensional ablation of solid targets by high power lasers, and can be compared to the usual flux-limited diffusion treatments of electron transport which are a standard feature of hydro models. Some of the computational challenges, including designing algorithms that work across a wide variety of plasma conditions and in the presence of sharp gradients, will be discussed.