Wall-distance-free formulation for SST k-ω model

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Hangzhou Dianzi University
  • University College Dublin

Kuvaus

Two different wdf (wall-distance-free) approaches are devised using local wall-distance and dissipation based representations to obtain consistency formulations for blending functions associated with the SST model. The strain-dependent coefficient C̄μ assists the SST model in constructing the functions such as to benefit complex flows with non-equilibrium turbulence, while retaining the predictive quality of unmodified SST closure. Naturally, the proposed methods allow the original SST model to be modified accurately and alleviate the free-stream dependency. Comparisons with the original SST k-ω model demonstrate that the newly developed alternatives to actual wall-distance usually improve the response of SST model to non-equilibrium effects.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut71-82
Sivumäärä12
JulkaisuEuropean Journal of Mechanics, B/Fluids
Vuosikerta75
TilaJulkaistu - 1 toukokuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 31344486