Two-equation model for supersonic flows based on modelling of pressure–strain correlation
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Authors
Molchanov, A.M.
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International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
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.
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.
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Keywords
Turbulence model, Turbulence model K-ε-Vn, High-speed compressible flows, Pressure-strain correlation, Turbulent mixing process, Velocity fluctuations, Plane supersonic mixing layers, High-speed jets
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Citation
Molchanov, AM 2012, Two-equation model for supersonic flows based on modelling of pressure–strain correlation, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.