孔板混合流消能研究  

Study on Flow Energy Dissipation by Orifice and Plate Mixed Structure

作　　者：杨丽萍[1] 梁跃[1] 徐伟[1] 

机构地区：[1]沈阳农业大学,沈阳110161

出　　处：《西北水力发电》2006年第2期34-36,共3页Journal of Northwest Hydroelectric Power

摘　　要：在软基低堰掺气窄缝戽流消能研究基础上，提出一种新型消能工——孔板混合流消能工。试验结果表明：孔板混合流的下游冲刷深度平均减少50％，涌浪高度降低70％，从而减轻对下游及两岸的冲刷，减少了工程量。On the basis of studies on aeration tract bucket flow energy dissipation in lower weir on soft foundation, a new type of energy dissipater was put forward. The comparison between the mixed flow energy dissipater experiments with and without orifice plate shows that the critical water depth of the orifice plate mixed flows in the lower course can be lowered as much as 20%, the downstream erosion depth can be reduced to 50%, and the surge height drops more than 70%. As a result, the erosion to the down stream river and two banks is lessened and the project quantity diminished.

关 键 词：软基 孔板混合流 消能 界限水深 

分 类 号：TV135[水利工程—水力学及河流动力学]