타원혼합 방정식을 사용하는 k-∈-v2 난류모형
k-∈-v2 Turbulence Model Using the Elliptic Blending Equation
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
This study describes the amendment of Durbin's k-∈-v2-f model and its application to turbulent channel flow to test the model’s performance. Modeling redistribution and dissipation rate terms for the scalar v2 transport equation is considered by the elliptic blending equation which is used in the second moment closure generally. The prediction results are directly compared to the DNS and Durbin's original k-∈-v2-f model to assess the performance of the new model predictions and to show their reasonable agreement with the DNS and Durbin's model for all the flow characteristics that are analyzed for the present study.
Abstract
This study describes the amendment of Durbin's k-∈-v2-f model and its application to turbulent channel flow to test the model’s performance. Modeling redistribution and dissipation rate terms for the scalar v2 transport equation is considered by the elliptic blending equation which is used in the second moment closure generally. The prediction results are directly compared to the DNS and Durbin's original k-∈-v2-f model to assess the performance of the new model predictions and to show their reasonable agreement with the DNS and Durbin's model for all the flow characteristics that are analyzed for the present study.
참고문헌 (8)
- P. A. Durbin, "Near-wall Turbulence Closure Modeling without Damping Functions", Theoretical and Computational Fluid Dynamics, 3, pp.1~13 (1991)
- P. A. Durbin, "A Reynolds Stress Model for Near-wall Turbulence", J. Fluid Mech, 249, pp.465~498 (1993)
- R. Manceau, "A New Form of the Elliptic Relaxation Equation to Account for Wall Effects in RANS Modeling", Phys. Fluids, 12, pp.2345~2351 (2000)
- F. S. Lien, "Computations of Transonic Flow with the v2-f Turbulence Model", Int. J. Heat and Fluid Flow, 22, pp.53~61 (2001)
- L. Thielen, "Prediction of Flow and Heat Transfer in Multiple Impinging Jets with an Elliptic-blending Second-moment Closure", Int. J. Heat Mass Transfer, 48, pp.1583~1598 (2004)
- 신종근, "타원-혼합 2차모멘트 모형에 의한 정사각단 면의 곡덕트내 난류유동의 수치해석", 한국기계기술학회지, 8(2), pp.23~30 (2006)
- 신종근, "벽면을 통해 유체 유출입을 수반하는 평행 평판유동에서 난류열전달의 예측", 한국기계기술학회지, 11(1), pp.1~8 (2009), 한국기계기술학회
- R. D. Moser, "Direct Numerical Simulation of Turbulent Channel Flow up to Reτ=590", Physics of Fluids, 11(4), pp.943~945 (1999)