Abstract
A low-Reynolds number κ-ε~ model is proposed in which the anisotropic production in near-wall regions is accounted for substantially by adding the cross-diffusion term in the ε~ equation. Hence, it reduces the kinetic energy and length scale magnitudes to improve prediction of adverse pressure gradient flows, involving flow separation and reattachment. The elliptic relaxation function induces the eddy viscosity damping such that it mimics the wall-limiting behaviour. The anisotropic nature of turbulence is introduced with turbulent Prandtl numbers σ(κ,ε) such as to provide substantial turbulent diffusion in near-wall regions. The model is validated against a few flow cases, yielding predictions in good agreement with the Direct Numerical Simulation (DNS) and experimental data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Progress in Computational Fluid Dynamics, An International Journal
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
