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Improving PIC-DSMC Simulations of Electrical Breakdown via Event Splitting

Oblapenko, Georgii and Goldstein, D. and Varghese, P. and Moore, C. (2022) Improving PIC-DSMC Simulations of Electrical Breakdown via Event Splitting. In: AIAA SciTech 2022 Forum, pp. 1-14. ARC. AIAA Scitech Forum 2022, 2022-01-03 - 2022-01-07, San Diego, USA. doi: 10.2514/6.2022-2152. ISBN 978-162410631-6.

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Official URL: https://doi.org/10.2514/6.2022-2152

Abstract

A newly developed variable-weight DSMC collision scheme for inelastic collision events is applied to PIC-DSMC modelling of electrical breakdown in 1-dimensional helium and argon-filled gaps. Application of the collision scheme to various inelastic collisional and gas-surface interaction processes (electron-impact ionization, electronic excitation, secondary electron emission) is considered. The collision scheme is shown to improve the level of noise in the computed current density compared to the commonly used approach of sampling a single process, whilst maintaining a comparable level of computational cost and providing less variance in the average number of particles per cell.

Item URL in elib:https://elib.dlr.de/147925/
Document Type:Conference or Workshop Item (Speech)
Title:Improving PIC-DSMC Simulations of Electrical Breakdown via Event Splitting
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Oblapenko, GeorgiiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goldstein, D.University of Texas at AustinUNSPECIFIEDUNSPECIFIED
Varghese, P.University of Texas at AustinUNSPECIFIEDUNSPECIFIED
Moore, C.Sandia National LaboratoriesUNSPECIFIEDUNSPECIFIED
Date:January 2022
Journal or Publication Title:AIAA SciTech 2022 Forum
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.2514/6.2022-2152
Page Range:pp. 1-14
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDAIAAUNSPECIFIEDUNSPECIFIED
Publisher:ARC
ISBN:978-162410631-6
Status:Published
Keywords:PIC-DSMC, event splitting, electrical breakdown
Event Title:AIAA Scitech Forum 2022
Event Location:San Diego, USA
Event Type:international Conference
Event Start Date:3 January 2022
Event End Date:7 January 2022
Organizer:AIAA
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 17:50
Last Modified:24 Apr 2024 20:46

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