DNS and LES of scalar transport in a turbulent plane channel flow at low Reynolds number

Jordan A. Denev, Jochen Fröhlich, Henning Bockhorn, Florian Schwertfirm, Michael Manhart

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The paper reports on DNS and LES of plane channel flow at Re τ = 180 and compares these to a DNS with a higher order convection scheme. For LES different subgrid-scale models like the Smagorinsky, the Dynamic Smagorinsky and the Dynamic Mixed Model were used with the grid being locally refined in the near-wall region. The mixing of a passive scalar has been simulated with two convection schemes, central differencing and HLPA. The latter exhibits numerical diffusion and the results with the central scheme are clearly superior. LES with this scheme reproduced the budget of the scalar variance equation reasonably well.

Original languageEnglish
Title of host publicationLarge-Scale Scientific Computing - 6th International Conference, LSSC 2007, Revised Papers
Pages251-258
Number of pages8
DOIs
StatePublished - 2008
Event6th International Conference on Large-Scale Scientific Computing, LSSC 2007 - Sozopol, Bulgaria
Duration: 5 Jun 20079 Jun 2007

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4818 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference6th International Conference on Large-Scale Scientific Computing, LSSC 2007
Country/TerritoryBulgaria
CitySozopol
Period5/06/079/06/07

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