Large-eddy simulation of turbulent flow in a plane asymmetric diffuser by the spectral-element method

Johan Ohlsson, Philipp Schlatter, Paul F. Fischer, Dan S. Henningson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

LES and no-model LES (coarse-grid DNS) have been performed of turbulent flow in a plane asymmetric diffuser by the Spectral-Element Method (SEM). Mean profile and turbulent stresses compare well to LES results from Herbst et al., however the SEM generally predicts a later (i.e. further downstream) separation. It can be concluded that the use of a high-order method is advantageous for flows featuring pressure-induced separation.

Original languageEnglish (US)
Title of host publicationDirect and Large-Eddy Simulation VII - Proceedings of the 7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008
EditorsBernard Geurts, Jochen Frohlich, Vincenzo Armenio
PublisherSpringer Netherland
Pages197-203
Number of pages7
ISBN (Print)9789048136513
DOIs
StatePublished - Jan 1 2010
Externally publishedYes
Event7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008 - Trieste, Italy
Duration: Sep 8 2008Sep 10 2008

Publication series

NameERCOFTAC Series
Volume13
ISSN (Print)1382-4309
ISSN (Electronic)2215-1826

Other

Other7th International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, 2008
CountryItaly
CityTrieste
Period9/8/089/10/08

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Computational Mathematics

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