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Computation of Supersonic Ramp Flow with V2F Turbulence Mode  

Park C. H. (한국과학기술원 항공우주공학과)
Park S. O. (한국과학기술원 항공우주공학과)
Publication Information
Journal of computational fluids engineering / v.8, no.2, 2003 , pp. 1-7 More about this Journal
Abstract
The V2F turbulence model, which has shown very good performance in several test cases at low speeds, has been applied to supersonic ramp flow with 20. corner angle at the free stream Mach number of 2.79. The flow is known to manifest strong shock wave/turbulent boundary layer interactions. As a comparative study, low-Reynolds k-ε models are also considered. While the V2F model predicts wall-pressure distribution well, it relatively predicts larger separation bubble and higher skin-friction after the reattachment than the experimental data. Although the ellpticity of f equation is the characteristics of incompressible flows, the converged solutions are acquired in the compressible flow with shock waves. The effect of the realizability constraints used in the model is also examined. In contrast to the result of impinging jet flows, the realizability bounds proposed by Durbin deterioate the overall solutions of the supersonic ramp flow.
Keywords
V2F turbulence model; Realizability constraint; Supersonic ramp flow;
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