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Hedging Direct Simulation Monte Carlo Bets via Event Splitting

Oblapenko, Georgii and Goldstein, D. and Varghese, P. and Moore, C. (2022) Hedging Direct Simulation Monte Carlo Bets via Event Splitting. Journal of Computational Physics (466), pp. 1-17. Elsevier. doi: 10.1016/j.jcp.2022.111390. ISSN 0021-9991.

Full text not available from this repository.

Official URL: https://www.sciencedirect.com/science/article/pii/S0021999122004521?via%3Dihub


We propose a new scheme for simulation of collisions with multiple possible outcomes in variableweight DSMC computations. The scheme is applied to a 0-D ionization rate coefficient computation, and 1-D electrical breakdown simulation. We show that the scheme offers a significant (up to an order of magnitude) improvement in the level of stochastic noise over the usual acceptancerejection algorithm, even when controlling for the slight additional computational costs. The benefits and performance of the scheme are analyzed in detail, and possible extensions are proposed.

Item URL in elib:https://elib.dlr.de/147967/
Document Type:Article
Title:Hedging Direct Simulation Monte Carlo Bets via Event Splitting
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Goldstein, D.University of Texas at AustinUNSPECIFIEDUNSPECIFIED
Varghese, P.University of Texas at AustinUNSPECIFIEDUNSPECIFIED
Moore, C.Sandia National LaboratoriesUNSPECIFIEDUNSPECIFIED
Date:28 June 2022
Journal or Publication Title:Journal of Computational Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-17
Series Name:Science Direct
Keywords:Rarefied gas dynamics, Direct Simulation Monte Carlo, Boltzmann equation, ionization
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:24 Nov 2022 11:20
Last Modified:02 Dec 2022 09:59

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