陡槽溢洪道多孔消能板消能特性影响因素的试验研究  

Experimental Research on Influencing Factors of Energy Dissipation Characteristics of Orifice Plates in Chute Spillway

作　　者：杨丽萍[1] 王钊[1] 高广和[1] 郎锡东[2] 

机构地区：[1]沈阳农业大学水利学院,辽宁沈阳110866 [2]沈阳农业大学外语部,辽宁沈阳110866

出　　处：《安徽农业科学》2014年第7期2158-2160,共3页Journal of Anhui Agricultural Sciences

摘　　要：传统消能工对于低水头、大流量的陡槽溢洪道消能效果并不显著。在陡槽溢洪道上设置多孔消能板后,大大提高了陡槽溢洪道的消能率。该文采用物理模型进行试验的方法,对设置多孔消能板的陡槽溢洪道的水流流速及消能特性行了详细的研究,得到了各个因素对设置多孔消能板的陡槽溢洪道消能率的影响情况,给出了其消能率最高达到80%以上的多孔消能板处理方案,消能效果显著。The effect of traditional energy dissipation structure is not significant for low water head and large flow in chute spillway. Through setting orifice plates in chute spillway, it greatly improved the energy dissipation characteristics of chute spillway. This paper analyzed flow pattern, the distribution of flow velocity and energy dissipation ratio of orifice plates in chute spillway through physical model experiment. The results showed that the situation of energy dissipation ratio varied by the influencing factors and the maximum energy dissipation ratio exceeded 80%, indicating that the effect of energy dissipation is significant.

关 键 词：陡槽溢洪道 多孔消能板 消能特性 影响因素 消能率 

分 类 号：S277[农业科学—农业水土工程] TU651.1[农业科学—农业工程]