Two-equation model for supersonic flows based on modelling of pressure–strain correlation

Abstract

Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.

A new turbulence model K-ε-Vn for high-speed compressible flows is developed. It is based on modelling of the rapid part of pressure-strain correlation depending on Mach number and on the assumption that the velocity fluctuations normal to streamline play a key role in turbulent mixing process. Simulations of a plane supersonic mixing layers and of axisymmetrical high-speed jets are performed and comparison with the experimental data shows reasonable agreement.