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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.
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Official URL: https://www.sciencedirect.com/science/article/pii/S0021999122004521?via%3Dihub
Abstract
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/ | ||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||
| Title: | Hedging Direct Simulation Monte Carlo Bets via Event Splitting | ||||||||||||||||||||
| Authors: |
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| Date: | 28 June 2022 | ||||||||||||||||||||
| Journal or Publication Title: | Journal of Computational Physics | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||
| DOI: | 10.1016/j.jcp.2022.111390 | ||||||||||||||||||||
| Page Range: | pp. 1-17 | ||||||||||||||||||||
| Editors: |
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| Publisher: | Elsevier | ||||||||||||||||||||
| Series Name: | Science Direct | ||||||||||||||||||||
| ISSN: | 0021-9991 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| 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: | 28 Feb 2024 14:00 |
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