Investigation of Turbulent Mixing Layer with Compressibility Corrections for RANS Models,

Eswaran, Vinayak and Sharma, V and Assam, Ashwani (2018) Investigation of Turbulent Mixing Layer with Compressibility Corrections for RANS Models,. In: 10th International Conference on Computational Fluid Dynamics (ICCFD10), 9-13 july 2018, Barcelona,Spain.

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Turbulent mixing is highly affected by fluid compressibilty. The current work aims to study the effect of compressibility corrections for 3 different Reynold Averaged Navier Stokes (RANS) turbulence models namely the standard k-epsilon, RNG and Spalart Allmaras models using an in-house parallel three dimensional unstructued CFD solver to compute a high speed mixing layer. The experimental study done by Goebel and Dutton has been used as the benchmark for investigation. The standard k-e is compared with the RNG model to see the effect of the change in model coefficients on the predicted flow physics. The one equation Spalart Allmaras model is compared with the aforementioned two equation model to make the performance comparison complete. Turbulent quantities like rate of mixing layer growth, turbulence intensity and normalized Reynold's stress have been compared with benchmark results along with mean flow quantities like the self similar velocity profiles and their results have been presented.

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IITH Creators:
IITH CreatorsORCiD
Eswaran, VinayakUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Subjects: Physics > Mechanical and aerospace
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: Library Staff
Date Deposited: 22 Oct 2019 06:25
Last Modified: 22 Oct 2019 06:25
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