坝下涵管水力计算wsg(水库放水洞管流量计算)

坝下涵管水力计算1、无压流坝下涵管的水力计算Q=ωC(Ri)^0.5经验公式Dhh/DQ圆涵Q方涵Q矩形涵0.250.18750.75C*i^0.5*0.347d^2.5C*i^0.5*0.411b^