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 Erfan Kadivar,Ebrahim Kadivar,Seyed Morteza Javadpour.Numerical Prediction of Laminar-to-Turbulent Transition Around the Prolate Spheroid[J].Journal of Marine Science and Application,2021,(1):46-54.[doi:10.1007/s11804-020-00184-w]
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Numerical Prediction of Laminar-to-Turbulent Transition Around the Prolate Spheroid


Numerical Prediction of Laminar-to-Turbulent Transition Around the Prolate Spheroid
Erfan Kadivar1 Ebrahim Kadivar2 Seyed Morteza Javadpour3
Erfan Kadivar1 Ebrahim Kadivar2 Seyed Morteza Javadpour3
1. Department of Physics, Shiraz University of Technology, Shiraz 71555-313, Iran;
2. Institute of Ship Technology, Ocean Engineering and Transport Systems, University of Duisburg-Essen, 47057 Duisburg, Germany;
3. Department of Mechanical Engineering, University of Gonabad, Gonabad, Iran
Laminar-to-turbulent transitionShear stress transport turbulence modelSkin fractionThree-dimensional ellipsoid
In this work, the laminar-to-turbulent transition phenomenon around the two- and three-dimensional ellipsoid at different Reynolds numbers is numerically investigated. In the present paper, Reynolds Averaged Navier Stokes (RANS) equations with the Spalart-Allmaras, SST k - ω, and SST-Trans models are used for numerical simulations. The possibility of laminar-toturbulent boundary layer transition is summarized in phase diagrams in terms of skin friction coefficient and Reynolds number. The numerical results show that SST-Trans method can detect different aspects of flow such as adverse pressure gradient and laminar-to-turbulent transition onset. Our numerical results indicate that the laminar-to-turbulent transition location on the 6:1 prolate spheroid is in a good agreement with the experimental data at high Reynolds numbers.


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Received date:2019-11-26;Accepted date:2020-06-06。
Foundation item:Erfan Kadivar acknowledges the support of Shiraz University of Technology Research Council.
Corresponding author:Erfan Kadivar, ebrahim.kadivar@uni-due.de
Last Update: 2021-06-10