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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국산업응용수학회 JOURNAL OF THE KOREAN SOCIETY FOR INDUSTRIAL AND APPLIED MATHEMATICS Journal of the Korean Society for Industrial and Applied Mathematics Vol.20 No.1
- 발행연도
- 2016.3
- 수록면
- 37 - 50 (14page)
이용수
초록· 키워드
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A large eddy simulation (LES) of a turbulent channel flow is performed by using the third order low-storage Runge–Kutta method in time and second order finite difference formulation in space with staggered grid at a Reynolds number, Re<SUB>τ</SUB> = 590 based on the channel half width, δ and wall shear velocity, u<SUB>τ</SUB>. To reduce the calculation cost of LES, algebraic wall model (AWM) is applied to approximate the near-wall region. The computation is performed in a domain of 2πδ×2δ×πδ with 32×20×32 grid points. Standard Smagorinsky model is used for subgrid-scale (SGS) modeling. Essential turbulence statistics of the flow field are computed and compared with Direct Numerical Simulation (DNS) data and LES data using no wall model. Agreements as well as discrepancies are discussed. The flow structures in the computed flow field have also been discussed and compared with LES data using no wall model.
목차
ABSTRACT
1. INTRODUCTION
2. GOVERNING EQUATIONS
3. NUMERICAL METHODS AND GRID SYSTEM
4. COMPUTATIONAL PARAMETERS
5. BOUNDARY CONDITIONS
6. ALGEBRAIC WALL MODEL
7. RESULTS AND DISCUSSIONS
8. CONCLUSION
REFERENCES
참고문헌 (25)
참고문헌 신청
J. Kim, P. Moin, and R. Moser, Turbulence statistics in fully developed channel flow at low Reynolds number, Journal of Fluid Mechanics, 177 (1987), 133–166.
R.D. Moser, J. Kim, and N.N. Mansour, Direct numrical simulation of turbulent channel flow up to Re = 590, Physics of Fluids, 11(4) (1999), 943–945.
P. Moin and J. Kim, Numerical Investigation of Turbulent Channel Flow, Journal of Fluid Mechanics, 118 (1982), 341–377.
F. Yang, H.Q. Zhang, C.K. Chan, and X.L. Wang, Large Eddy Simulation of Turbulent Channel Flow with 3D Roughness Using a Roughness Element Model, Chinese Physics Letters, 25(1) (2008), 191–194.
M.A. Uddin and M.S.I. Mallik, Large Eddy Simulation of Turbulent Channel Flow using Smagorinsky Model and Effects of Smagorinsky Constants, British Journal of Mathematics & Computer Science, 7(5) (2015), 375–390.
R.D. Moser, J. Kim, and N.N. Mansour, Direct numrical simulation of turbulent channel flow up to Re = 590, Physics of Fluids, 11(4) (1999), 943–945.
P. Moin and J. Kim, Numerical Investigation of Turbulent Channel Flow, Journal of Fluid Mechanics, 118 (1982), 341–377.
F. Yang, H.Q. Zhang, C.K. Chan, and X.L. Wang, Large Eddy Simulation of Turbulent Channel Flow with 3D Roughness Using a Roughness Element Model, Chinese Physics Letters, 25(1) (2008), 191–194.
M.A. Uddin and M.S.I. Mallik, Large Eddy Simulation of Turbulent Channel Flow using Smagorinsky Model and Effects of Smagorinsky Constants, British Journal of Mathematics & Computer Science, 7(5) (2015), 375–390.
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UCI(KEPA) : I410-ECN-0101-2016-410-002754244