Compound-channel flows: a parametric study using a Reynolds-stress transport closure
Compound-channel flows: a parametric study using a Reynolds-stress transport closure
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复合通道流：使用雷诺应力传输闭合的参数研究
DOI：
10.1080/00221689509498573
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
B. Younis
中科院分区：
文献类型：
--
作者：
D. Cokljat;B. Younis
完整的湍流雷诺应力传递模型用于预测不对称性、表面粗糙度和侧壁倾斜对开放复合通道中湍流流动行为的影响。湍流模型是之前参考简单、矩形、开放通道开发的模型，此处无需修改即可使用。与多个实验的平均流量和湍流数据进行了比较，结果表明计算结果与测量行为具有相当好的相关性。模拟还揭示了当前流动的一个迄今为止未报告的特征，即剪应力和相关应变率为零的点在流动内的各个位置处不重合。
A complete Reynolds-stress transport model of turbulence is used to predict the effects of asymmetry, surface roughness and side-wall inclination on the behaviour of turbulent flows in open, compound, channels. The turbulence model is one which was previously developed with reference to simple, rectangular, open channels and is used here without modification. Comparisons are made with mean-flow and turbulence data from several experiments and these show that the computed results correlate reasonably well with the measured behaviour. The simulations also reveal a hitherto unreported feature of the present flows, namely the noncoincidence at various locations within the flow of the points where the shear stresses and the relevant rates of strain are zero.