跌坎式消力池水力特性影响因素试验研究

Experimental research on influential factors of hydraulic features of drop-off stilling basin

通过不同坡角以及坎高的跌坎式消力池进行水工模型试验,试验得出:坡角越大,消力池内水跃长度越小;坡角的变化也影响到消力池消能率的大小;跌坎的高度对消力池消能有较大影响,因此,在设计跌坎式消力池时,要选择合适的坡角和跌坎高度才能达到更好的消能效果。

The paper undertakes the hydraulic model experiments by the drop-off basin with various slope angles and ridge heights,concludes by the experiment that,the bigger the slope angles are,the less the length of jumping of the stilling basin will be,the changes of the slope angles will influence the energy dissipation ratio,the height of the drop-off slope has large influence on the energy consumption of the stilling basin,so it points out the better energy dissipation effect can be achieved by selecting proper slope angles and the drop-off height in the design of the drop-off stilling basin.