Adaptive Kinetic-Fluid Models for Expanding Plasmas
Robert R. Arslanbekov, Vladimir I. Kolobov
TL;DR
This paper presents a unified computational approach for simulating expanding plasmas and gas flows, addressing the challenges of modeling mixed continuum and rarefied regimes in plasma jet dynamics.
Contribution
Introduction of the Unified Flow Solver (UFS) for simulating transient plasma jets, combining gas dynamics and plasma effects in a single framework.
Findings
UFS effectively simulates mixed continuum-rarefied flows.
The model captures transient gas expansion and collisionless plasma dynamics.
Identifies future needs for hybrid fluid-kinetic simulation improvements.
Abstract
We describe gas dynamic and plasma effects for transient plasma jets under different conditions. Our Unified Flow Solver (UFS) is evaluated for simulations of mixed continuum-rarefied flows, transient gas expansion dynamics and collisionless plasma expansion. We identify further advances that are required for hybrid fluid-kinetic simulations of laser-ablation and EEE-induced plasma jets.
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