A Computational Study of the Unsteady Flow Past Tandem Cylinders
A Computational Study of the Unsteady Flow Past Tandem Cylinders
复制标题
DOI：
10.2514/6.2006-3204
复制
发表时间：
2006-06
期刊：
影响因子：
--
通讯作者：
Kader Frendi;Mahmoud Zreik;A. Tosh
中科院分区：
文献类型：
--
作者：
Kader Frendi;Mahmoud Zreik;A. Tosh
本文介绍了一种新建立的湍流模型部分平均Navier-Stokes （PANS）在串列圆柱布置的非定常流场中的应用。本研究采用了两个PANS模型；一个基于k，另一个基于k。两种模型的有效性是通过将其结果与实验测量的结果进行比较来评估的。使用的平均流量参数为；马赫数为0.166，雷诺数基于圆柱直径为0.166万。所研究的无量纲圆柱间距分别为1.435和3.7。在相同的网格分辨率和分辨率控制参数的最优值分别为0.2和1.0时，基于k-omega的pan比基于k-epsilon的pan效果更好。K f f f
This paper describes the application of a newly developed turbulence model, Partially Averaged Navier-Stokes (PANS), to an unsteady flow around a tandem cylinder arrangement. Two PANS model are used in this investigation; one based on k-epsilon and the other on k-omega. The effectiveness of both models is assessed by comparing their results to those measured experimentally. The mean flow parameters used are; Mach number 0.166 and Reynolds number based on the cylinder diameter of 0.166 million. The nondimensional cylinder spacings studied are 1.435 and 3.7. Using the same grid resolution and for an optimal value of the resolution control parameters and of 0.2 and 1.0, respectively, the k-omega based PANS gave superior results than the k-epsilon based one. k f e f