多股多层水平淹没射流消能工水力特性试验研究  

Experimental study on energy dissipation characteristics of multi-horizontal submerged jets

作　　者：黄秋君[1] 冯树荣[2] 李延农[2] 吴建华[1] 

机构地区：[1]河海大学水利水电工程学院,南京210098 [2]中南勘测设计研究院,长沙410014

出　　处：《水动力学研究与进展（A辑）》2008年第6期694-701,共8页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(50539060)

摘　　要：多股多层水平淹没射流消能工具有雾化较低、消能效率较高、流态稳定、对下游水位变幅有较强的适应性等特点,对水头高、流量大且泄洪前沿宽度有限,单宽流量较大的水电工程,可以有效地解决其泄洪消能难题。该文通过理论分析与物理模型试验,对多股多层水平淹没射流消能工的水力特性进行了分析与研究。结果表明:中孔高程、表孔高程和表中孔高程差等参数的选择对消力池的临底流速、浪高和尾坎处的波动都是重要的。Energy dissipations of multi-horizontal submerged jets(MHSJ) are low atomization, higher efficiency to energy dissipation, steady flow pattern with strong adaptability to change downstream level. It can solve effectively the problems of energy dissipation for those hydropower projects with high water head, large flow rate and finite width of flood discharge. Based on dimensional analysis and physical model tests, the hydraulic characteristics of multi-horizontal submerged jets energy dissipation were invest...

关 键 词：多股多层水平淹没射流 消能 量纲分析 临底流速 浪高 波动 

分 类 号：TV135.2[水利工程—水力学及河流动力学]