K-ε模型在复杂管流中的模拟计算
Numerical Simulation of Complicated Pipe Flow with K-ε Model
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摘要: 本文对复杂管流中的湍流问题采用了k-ε模型进行模拟计算.对于复杂边界问题采用了阶梯型网格近似,取得了较好的结果.文中给出了两例复杂管流的计算算例,说明了K-ε模型具有很强的适应性和稳定性.Abstract: In this paper,turbulence in a complicated pipe is simulated by using the k-ε model.The ladder-like mesh approximation is used to solve the problem of complicated boundary with the result of numerical simulation favorable.Two computational examples are given to validate the strong adaptability and stability of k-ε model.
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Key words:
- tubulence /
- complicated pipe flow /
- numerical simulation
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[1] S.V.Patankar and D.B.Spalding,A calculation procedure for heat.mass andmomentum transfer in three-dimensional parabolic flows,Int.J.Heat.& Mass Transfer,15(1972),1781. [2] 金忠青.《N-S方程的数值解和紊流模型》,河海大学出版社(1989). [3] 陈景仁,《湍流模型及有限分析法》,上海交通大学出版社(1989). [4] D.M.Stevenson,A.P.Yoganathan and F.P.Williams,Numerical simulation of steadyturbulent flow through trileaflet aortic heart vatves,J.Biomechanics,18.12(1985),899-926.
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