Turbulent Boundary Layer Development over Rough Surfaces
Turbulent Boundary Layer Development over Rough Surfaces
复制标题
粗糙表面上的湍流边界层发展
DOI：
10.1007/978-3-642-82994-9_9
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发表时间：
1987
影响因子：
4.3
通讯作者：
I. Tani
中科院分区：
文献类型：
--
作者：
I. Tani
本文应用Coles壁面附加定律和尾迹定律，并考虑粗糙度的影响，提出了一种由零压力梯度下粗糙壁湍流边界层平均速度实验数据求取特征参数（摩擦、尾迹和粗糙度参数）的积分分析方法。重点放在一致的确定的特征参数和解释的粗糙度的影响，在这些参数的上下文中。重新评估发表的实验数据的三个例子的k型粗糙度（砂粒，球和圆杆粗糙度），此外，为D型的槽粗糙度。最后一个例子特别有趣，因为它表现出平衡行为。
Using Coles additive law of the wall and law of the wake, with constant shift allowed for the effect of roughness, an integral method of analysis is put forward for evaluating the characteristic parameters (friction, wake and roughness parameters) from experimental mean velocity data of rough-wall turbulent boundary layers in zero pressure gradient. Emphasis is laid on the consistent determination of characteristic parameters and the interpretation of the effects of roughness in the context of these parameters. Re-evaluation of the published experimental data is made for three examples of the k-type roughness (the sand grain, sphere and circular rod roughnesses) and, furthermore, for the groove roughness of the d-type. A special interest attaches to the last example as it exhibits equilibrium behavior.