A note on waveless subcritical flow past a submerged semi-ellipse

A note on waveless subcritical flow past a submerged semi-ellipse
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关于经过浸没半椭圆形的无波亚临界流的注记

DOI:
10.1007/s10665-012-9594-5
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发表时间:
2013
影响因子:
1.3
通讯作者:
L. Forbes
L. Forbes
中科院分区:
工程技术4区
文献类型:
--
作者:
G. Hocking;R. J. Holmes;L. Forbes

文献摘要

被引文献

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水流越过宽阔的障碍物通常会产生一个下游波列。然而,已经表明,对于某些物体和流速的离散值以及障碍物的高度和长度,没有下游波-因此物体上的波阻力为零。在这里,我们重新审视这个问题,并完成检查的参数空间的流动超过半椭圆。一个丰富的模式,无波的解决方案,相互融合的检测。
The flow of water over a broad obstruction usually creates a downstream wave train. However, it has been shown that for some objects and discrete values of flow rate and height and length of the obstruction, there are no downstream waves – and hence zero wave drag on the object. Here we revisit this problem and complete an examination of the parameter space for flow over a semi-ellipse. A rich pattern of waveless solutions that merge into each other is detected.