某电站泄洪冲沙洞数值模拟分析

On numeric simulation analysis of sediment-flushing with flood-releasing of some power station

通过flow3d软件,对某电站泄洪冲沙洞进行了数值模拟分析,探讨了其泄流能力、洞内流速及压力分布情况,指出泄流能力与增设前相差均不超过3%,洞内流态较为稳定,其流速分布与压力分布均符合一般规律,因此增设放流洞的设计方案是可行的。

By using flow3 d software,the paper undertakes the numeric simulation analysis of the flood-releasing sand-flushing cave of some power station,explores its releasing capacity,flow speed of caves,and pressure distribution,points out the difference between the releasing capacity and the value before the addition is less than 3 percent with the more stable flow state in the cave,and indicates the flow speed distribution and pressure distribution are consistent with the universal law,so it is feasible to add the design scheme for the discharge cave.