Parallel adaptive procedure for CFD simulations

TL;DR

This paper presents a parallel adaptive mesh refinement method for CFD plasma simulations, demonstrating improved performance in resolving complex electron density features using MPI, METIS, and MUMPS solvers.

Contribution

It introduces a novel Parallel Adaptive Mesh Refinement (PAMR) procedure integrated into the ADAPT platform for efficient CFD plasma simulations.

Findings

PAMR improves mesh resolution dynamically for plasma features.

The implementation achieves efficient parallel performance with MPI and METIS.

Results show effective propagation simulation of ionization waves.

Abstract

The present paper describes a parallel unstructured-mesh Plasma simulation code based on Finite Volume method. The code dynamically refines and coarses mesh for accurate resolution of the different features regarding the electron density. Our purpose is to examine the performance of a new Parallel Adaptive Mesh Refinement (PAMR) procedure introduced on the ADAPT platform, which resolves of a relatively complicated system coupling the flow partial differential equations to the Poisson's equation. The implementation deals with the MUMPS parallel multi-frontal direct solver and mesh partitioning methods using METIS to improve the performance of the framework. The standard MPI is used to establish communication between processors. Performance analysis of the PAMR procedure shows the efficiency and the potential of the method for the propagation equations of ionization waves.