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Improving PIC-DSMC Simulations of RF Plasmas via Event Splitting

Oblapenko, Georgii and Goldstein, David and Varghese, Philip and Moore, Christopher (2022) Improving PIC-DSMC Simulations of RF Plasmas via Event Splitting. In: 9th European Conference for Aeronautics and Aerospace Sciences (EUCASS) 2022, pp. 1-10. 9th European Conference for Aeronautics and Aerospace Sciences (EUCASS) 2022, 2022-06-27 - 2022-07-01, Lille, Frankreich.

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Official URL: https://www.eucass.eu/

Abstract

Particle-in-Cell Direct Simulation Monte Carlo (PIC-DSMC) is a widely used method for simulation of non-equilibrium plasmas, especially when the plasma flow is rarefied, and the applicability of fluid models is questionable. However, the PIC-DSMC method is subject to stochastic noise, and depending on the process being simulated, might require extremely large computational efforts. Therefore, the improvement of accuracy of PIC-DSMC methods is a topic of active research. In the present work, a recently developed collision and boundary condition treatment scheme, dubbed 'event splitting', which aims at improving simulation of low-probability processes, is applied to ionization processes in xenon and helium plasmas, where it shown to reduce the level of stochastic noise compared to standard DSMC collision schemes.

Item URL in elib:https://elib.dlr.de/147982/
Document Type:Conference or Workshop Item (Speech)
Title:Improving PIC-DSMC Simulations of RF Plasmas via Event Splitting
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Oblapenko, GeorgiiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goldstein, DavidUniversity of Texas at AustinUNSPECIFIEDUNSPECIFIED
Varghese, PhilipUniversity of Texas at AustinUNSPECIFIEDUNSPECIFIED
Moore, ChristopherSandia National LaboratoriesUNSPECIFIEDUNSPECIFIED
Date:June 2022
Journal or Publication Title:9th European Conference for Aeronautics and Aerospace Sciences (EUCASS) 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-10
Status:Published
Keywords:PIC-DSMC, event splitting, plasma modelling
Event Title:9th European Conference for Aeronautics and Aerospace Sciences (EUCASS) 2022
Event Location:Lille, Frankreich
Event Type:international Conference
Event Start Date:27 June 2022
Event End Date:1 July 2022
Organizer:EUCASS, 3AF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Reusable Space Systems and Propulsion Technology
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Hannemann, Dr.rer.nat. Volker
Deposited On:08 Dec 2022 17:59
Last Modified:24 Apr 2024 20:46

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