多孔水闸少数孔开启条件下主流扩散研究

发布时间：2018-06-23 01:56

  本文选题：多孔水闸 + 主流压缩　； 参考：《河北农业大学学报》2017年03期

【摘要】：针对多孔水闸少数孔开启时主流被压缩,跃后水深大于同种条件下的二元水跃而不利于海漫防冲的问题,本研究基于重力相似准则,建立了1∶100的水闸模型,并引入一种潜没式三角翼,在多种工况下对水闸泄水中主流受压缩的水跃情况进行了试验研究。结果表明:潜没式三角翼能够促进底部主流的扩散,降低跃后水深和下游水面波动率,减轻海漫的防冲压力。在此基础上,本研究对三角翼的分流角和最佳布置位置进行了初步研究,为工程应用提供了依据。
[Abstract]:In view of the problem that the main stream is compressed when a few holes are opened and the water depth after the jump is greater than the binary water jump under the same conditions, which is not conducive to the overflowing and anti-scouring of the sea, a 1: 100 sluice model is established based on the gravity similarity criterion. A submersible delta wing is introduced to study the hydraulic jump in the main stream of sluice discharge under various working conditions. The results show that the submersible delta wing can promote the diffusion of the bottom mainstream, reduce the water depth after the jump and the fluctuation rate of the downstream water surface, and reduce the anti-scour pressure of the sea overspread. On this basis, the triangulation angle and optimal position of delta wing are studied preliminarily, which provides the basis for engineering application.
【作者单位】： 河北农业大学城乡建设学院;
【基金】：河北农业大学百名青年学术带头人培养计划项目(0318011)
【分类号】：TV66
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本文编号：2055214