Particle-in-Cell (PIC) Solver Using Least Squares Moving Particle Semi-implicit (LSMPS) Method
Keywords:
LSMPS, Particle-in-Cell, PIC, Plasma, Plasma oscillationAbstract
Particle-in-Cell (PIC) is the most common method used in a fullykinetic solver, usually for low-density gases and non-equilibrium plasma simulation. The finite volume method is the natural choice for solving the Eulerian field because of its familiarity and ability to simulate arbitrary geometries. This work introduces the least squares moving particle semi-implicit (LSMPS) method as an alternative by using the particle method for solving spatial differentiation in Particle-in-Cell solver. In order to conduct a full simulation, some essential supporting functions should also be made, such as the field weighting for the Lagrangian particle description and the particle pusher algorithm to accommodate the external forces, such as Lorentz force in plasma. Plasma oscillation benchmarking will be used to validate all of the functions.
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