Physical and Mathematical Simulation of the Axisymmetric Turbulent Flow around a Body of Revolution with a Large Aspect Ratio
V. I. Kornilov1, E. A. Shkvar2,3
1Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
2Zhejiang Normal University, Jinhua, China
3Institute of Hydromechanics, National Academy of Sciences, Kyiv, Ukraine
Keywords: turbulent boundary layer, body of revolution, experiment, numerical simulation, flow properties
Abstract
A computational and experimental analysis of the properties and fundamental features of a turbulent boundary layer on an elongated axisymmetric body of revolution under conditions of an incompressible flow around it at the Reynolds number ReL = 4.33 x 106 is carried out. It is shown that the experimental values of the local and integral parameters of the boundary layer on the body of revolution are in reasonable agreement with the results of a numerical calculation performed by solving the Reynolds-averaged Navier-Stokes equations using the low-Reynolds version of the k-w SST turbulence model. The data obtained indicate the need for careful contouring of the aft part of the body of revolution in order to minimize losses caused by the bottom drag of the aft end.
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