复杂进流条件下泵站进水流态优化试验

Experimental study on optimization of inlet flow pattern in pumping station under complex inlet conditions

为解决闸、站、桥结合式泵站复杂进流条件下前池易产生偏流的问题,以某闸站工程为研究对象,采用物理模型试验和数值模拟相结合的方法,分析不同优化措施下面层流场和进水流道断面的流速均匀度,确定最佳优化方案.研究表明:通过增加导流墩头、整流柱、镂空底坎等组合整流措施,可有效消除复杂工程布置下前池的偏流和进水池的漩涡,为类似工程提供借鉴和参考.

To solve the problem that the front pool is prone to flow bias under complex inlet conditions of sluice,station and bridge pump station,a sluice-pump station project is taken as the research object,and the velocity uniformity of laminar flow field and inlet channel section under different optimization measures is analyzed by physical model test and numerical simulation,and the optimal optimization scheme is determined.The research shows that by adding the combined rectification measures such as the head of the diversion pier,the rectifier column and the hollow bottom can effectively eliminate the deflection of the front pool and the vortex of the inlet pool under the complex arrangement of the project.The proposed optimization scheme can provide reference for similar projects.