elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

A Voronoi Grid and a Particle Tracking Algorithm for DSMC

Stollmeier, Frank and Grabe, Martin (2011) A Voronoi Grid and a Particle Tracking Algorithm for DSMC. AIP| Conference Proceedings|1333 (331). American Institute of Physics. ISBN 978-0-7354-0889-0. ISSN 0094-243X

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1063/1.3562670

Abstract

The DSMC method simulates a gas by three uncoupled steps: moving representative particles through a physical domain, performing probabilistic collisions and estimating the macroscopic state by ensemble averaging. In order to ease computational treatment of these three steps it is convenient to discretize the space with a grid that fits into the boundaries of the physical domain. For efficient particle tracking it is useful that the cells of this grid are convex polyhedra which preferably have no indirect neighbors. To reduce discretization errors in the collision step and to take reasonable averages the cells should be nearly isotropic, whereas their volume is primarily determined by the local flow gradients. Especially the latter condition requires the density of the grid to be continuously adaptable in space and time. We show that grids derived from Voronoi diagrams fulfill these requirements very well.

Document Type:Proceedings
Additional Information:PART ONE
Title:A Voronoi Grid and a Particle Tracking Algorithm for DSMC
Authors:
AuthorsInstitution or Email of Authors
Stollmeier, Frankfrank.stollmeier@dlr.de
Grabe, Martinmartin.grabe@dlr.de
Date:2011
Refereed publication:Yes
In Open Access:Yes
In ISI Web of Science:No
DOI:10.1063/1.3562670
Page Range:pp. 331-336
Publisher:American Institute of Physics
Series Name:AIP| Conference Proceedings|1333
ISSN:0094-243X
ISBN:978-0-7354-0889-0
Status:Published
Keywords: DSMC, particle tracking, mesh
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Raumfahrzeugsysteme - Numerische Verfahren und Simulation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Ilka Micknaus
Deposited On:05 Dec 2011 15:08
Last Modified:17 Sep 2014 14:49

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.