DNS/LES of boundary layer transition

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Abstract

A numerical simulation of the production of a single turbulent spot in a spatially developing boundary layer is performed. The simulations are performed on three grids with different resolution in span- and stream-wise direction. To account for the sub-grid contributions on the coarser grids a Smagorinsky turbulent viscosity is compared to the results obtained with a recovery model. It is found that the added viscosity in the Smagorinsky-simulation is much to high and no turbulent spot is formed. The use of the recovery model yields much better results. Furthermore, the simulation using the recovery model retains its numerical stability on the coarsest grids, while the solutions still show the main features of the turbulent spot.
Original languageEnglish
Title of host publicationHeat transfer 2002 : proceedings of the Twelfth International Heat Transfer Conference, Grenoble, France, August 18 - 23, 2002
EditorsJ. Taine
Place of PublicationParis
PublisherElsevier
Pages603-608
Volume2
ISBN (Print)2-8429-9308-X
Publication statusPublished - 2002
Event12th International Heat Transfer Conference - Grenoble, Switzerland
Duration: 18 Aug 200223 Aug 2002

Conference

Conference12th International Heat Transfer Conference
CountrySwitzerland
CityGrenoble
Period18/08/0223/08/02
OtherLecture given at: 12th International Heat Transfer Conference, 18 - 23 August 2002, Grenoble

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