Numerical Simulation of Turbulent Flow Over of Semi-Cylindrical Profile at Zero Angle of Attack
1 Siberian Federal University, Krasnoyarsk, Russia
2 Institute of Thermophysics, Novosibirsk, Russia
* Corresponding author: firstname.lastname@example.org
Results of unsteady two-dimensional numerical simulations for the turbulent flow over the semi-cylindrical profile at Reynolds number 45000 are presented. Three different turbulence RANS eddy viscosity models are used for the simulation. The calculations show the formation of alternating large-scale vortices shed in the wake of the body. The calculated averaged pressure distribution on the contour demonstrate a good agreement with the experimental data. A series of calculations have been performed for the estimation of influence of mesh resolution in the wake of streamlined body on the unsteady solution accuracy. It was found that a mesh size ~0.04 of chord length is sufficient to resolve the vortex street.
© The Authors, published by EDP Sciences, 2016
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