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A Numerical Simulation of Longitudinal Vortex in Turbulent Boundary Layers
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A Numerical Simulation of Longitudinal Vortex in Turbulent Boundary Layers
Yang, Jang-Sik; Lee, Ki-Baik;
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This paper represents numerical computations of the interaction between the longitudinal vortex and a flat plate 3-D turbulent boundary layer. In the present study, the main interest is in the behavior of longitudinal vortices introduced in turbulent boundary layers. The flow field behind vortex generator is modeled by the information that is available from studies on the delta winglet. Also, the Reynolds-averaged Navier-Stoke equations for three-dimensional turbulent flows, together with a two-layer turbulence model to resolve the near-wall flow, is solved by the method of pseudo compressibility. The present results show that the boundary layer is thinned in the regions where the secondary flow is directed toward the wall and thickened where it is directed away from the wall, and have a good agreement with the experimental data
Longitudinal Vortex;Numerical Simulation;Pseudo Compressibility;Vortex Generator;
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과도 액정 기법을 이용한 와동발생기 하류의 유동장 및 열전달 측정,홍철현;양장식;이기백;

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