Modification of the K−omega SST Model to Obtain the Turbulent Kinetic Energy Profile: Flat Plate Flow
DOI:
https://doi.org/10.70567/mc.v41i6.33Keywords:
Flat Plate, Viscous Corrections, Turbulent Kinetic Energy ProfileAbstract
The present work addresses the formulation of the k-omega SST turbulence model, incorporating the viscous corrections proposed by Wilcox (Wilcox D.C , Turbulence Modeling for CFD, (1998)). The main purpose is to improve the approximation of the turbulent kinetic energy profile near solid boundaries while maintaining the independence of the specific dissipation rate from the free-stream value. As a result, the equations for turbulent kinetic energy and specific dissipation obtained resemble the k - ! SST model, including variable coefficients as a function of the relationship between turbulent and viscous effects. This integration allows the incorporation of the viscous correction closure functions into the F1 and F2 functions, thereby contributing to a more accurate representation of turbulent behavior near solid surfaces.
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