V2F 난류모형을 이용한 초음속 램프유동의 해석 Computation of Supersonic Ramp Flow with V2F Turbulence Mode

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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.
Publisher
한국전산유체공학회
Issue Date
2003-06
Language
Korean
Citation

한국전산유체공학회지, v.8, no.2, pp.1 - 7

ISSN
1598-6071
URI
http://hdl.handle.net/10203/10884
Appears in Collection
AE-Journal Papers(저널논문)
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