DSMC Modeling of a Single Hot Spot Evolution Using the Landau-Fokker-Planck Equation

• Numerical solution of a fully nonlinear one dimensional in space and three dimensional in velocity space electron kinetic equation is presented. Direct Simulation Monte Carlo (DSMC) method used for the nonlinear Landau-Fokker-Planck (LFP) collision operator is combined with Particle-in-Cell (PiC) simulations. An assumption of a self-consistent ambipolar electric field is used. The illustrative simulation results for the relaxation of the initial temperature perturbation are compared with the antecedent analytical and numerical results.

Ämnesord

NATURVETENSKAP  -- Matematik (hsv//swe)

NATURAL SCIENCES  -- Mathematics (hsv//eng)

Nyckelord

Boltzmann kinetic equation

Coulomb collisions

Nonlinear Landau-Fokker-Planck equation

DSMC method

PiC method

Nonlocal heat transport

Matematik

Mathematics

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