2-방정식 및 레이놀즈 응력 모형을 이용한 초음속 난류/ 기저 유동의 수치적 계산 Computation of supersonic turbulent base flow using two-equation and Reynolds stress models

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The performance of several turbulence models in computing an axisymmetric supersonic base flow is investigated. A compressible Navier-Stokes code, which incorporates k-ε, k-ω model and Reynolds stress closure with three kinds of pressure-strain correlation model, has been developed using implicit LU-SGS algorithm with second-order upwind TVD scheme. Numerical computations have been carried out for Herrin and Duttons base flow. It is observed that the two-equation models give large backward axial velocity approaching to the base and somewhat larger variation of base pressure distribution than the Reynolds stress model. It is also found that the Reynolds stress model with third order pressure-strain model in the anisotropy tensor predicts most accurate mean flow field.
Publisher
한국전산유체공학회
Issue Date
1997-12
Language
Korean
Citation

한국전산유체공학회지, v.2, no.2, pp.9 - 17

ISSN
1598-6071
URI
http://hdl.handle.net/10203/14764
Appears in Collection
AE-Journal Papers(저널논문)
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