【摘要】 文中研制了一套以激光作片光源的流场显示装置，并对单股和双股射流水垫塘流场进行了可视化研究．流场显示表明：双股射流的水垫塘流动结构可划分为六个区域，比通常的单股射流塘内水流结构增加了股间混掺区和“动水垫”影响区两个流区．分析讨论指出，双股射流入塘后水舌扩散加快和产生动水垫效应是其流态优于单股射流的两个显著特征．本文成果将为以降低塘底动水压强和充分发挥水垫塘消能效率为目标的水垫塘优化设计与计算提供指导和依据更多还原

【Abstract】 A laser lightsheet device for flow visualization is developed,and the flow fields for the water cushion pool with a single jet and with two jets respectively are investigated and compared.Some important features of the two-jets flow field are found.A guide for optimazing the design of water cushion pool in lowering dynamic water pressure on the pool bottom and increasing energy dissipation is given.更多还原