Flow and Erosive Stresses at the Base of a Headcut
Flow and Erosive Stresses at the Base of a Headcut
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DOI：
10.1061/(asce)0733-9429(2005)131:2(139
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发表时间：
2005-02
影响因子：
2.4
通讯作者：
R. Frenette;I. Pestov
中科院分区：
文献类型：
--
作者：
R. Frenette;I. Pestov
本文修改了目前的理解在一个头切的基础上的流动，并提出了一个新的模型，采用涡流的概念。涡流的一个显著特征是存在上游指向的射流，该射流攻击垂直水头边界。数值模拟表明，上游定向射流对溃口发展的影响的重要性。
This paper revises current understanding of the flow at the base of a headcut and suggests a new model which employs the concept of a vortex flow. A distinctive feature of the vortex flow is the presence of the upstream-directed jet, which attacks the vertical headcut boundary. Numerical simulations are performed to demonstrate the significance of the effects of the upstream-directed jet for breach development.