Application of scaleadaptive simulation based on k-ω sstturbulence model

Xiang Yu Wang, Dong Li

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

1 Scopus citations

Abstract

Scale Adaptive Simulation (SAS) based on k-ω SST turbulence model is a more and more popu-lar hybrid RANS/LES method in separated flow simulations. We review the basic theory of SST-SAS and present two approaches of improve-ment for the problem of high wave number damping. Numerical simulations show that the situation of insufficient viscosity in high wave number in the original SST-SAS is well reme-died with the combination of the two above, which could further strengthen the grid adapta-bility compared with Detached Eddy Simulation (DES) and make the turbulent viscosity deter-mined adaptively according to the local flow motion.

Original languageEnglish
Title of host publication29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
PublisherInternational Council of the Aeronautical Sciences
ISBN (Electronic)3932182804
StatePublished - 2014
Event29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014 - St. Petersburg, Russian Federation
Duration: 7 Sep 201412 Sep 2014

Publication series

Name29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014

Conference

Conference29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
Country/TerritoryRussian Federation
CitySt. Petersburg
Period7/09/1412/09/14

Keywords

  • Detached eddy simulation
  • High wave number damping
  • K-ω SST turbulence model
  • Numerical simulation
  • Scale adaptive simulation

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