The initial development of a jet caused by fluid, body and free-surface interaction. Part 1. A uniformly accelerating plate
The initial development of a jet caused by fluid, body and free-surface interaction. Part 1. A uniformly accelerating plate
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由流体、物体和自由表面相互作用引起的射流的最初发展。
DOI：
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发表时间：
1994
影响因子：
3.7
通讯作者：
D. Needham
中科院分区：
文献类型：
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作者：
A. King;D. Needham
研究了垂直板加速进入具有自由表面和重力恢复力的有限深度静止流体时所引起的流场。对于一些技术上重要的设计问题来说，这是一个模型问题，比如船舶在前进速度下的船首飞溅。实验发现，薄射流在板上形成并迅速上升。我们在小时间近似下研究了这种射流，并找到了流场的解析解，其中射流从一个薄区域出现，其中主流的水平动量被惯性效应转化为上升射流。
The flow field induced by a vertical plate accelerating into a stationary fluid of finite depth with a free surface and a gravitational restoring force is investigated. This is a model problem for some technologically important design issues such as the bow splash of a ship moving at forward speed. Experimentally it is found that a thin jet forms on the plate and rises rapidly upwards. We investigate this jet in the small-time approximation and find an analytical solution for the flow field in which the jet emerges out of a thin region where the horizontal momentum of the main flow is converted by inertial effects into a rising jet.