摘要
通过对无压圆管的水力要素分析 ,经计算求解 ,可以得出以下结论 :当过水段面处于水力最优时 ,通过无压圆管的最大流量大于圆管恰好满流时流量的 7.6% ;当管内断面平均流速呈最大值时 ,其值大于管内恰好满流时流速的 1 4% .
By analyzing the elements of hydraulic and calculating the maximum of flow and velocity using computer,we can draw the conclusion:when the cross section of pipe is on the hydraulic optimality,the maximum flow of unpressure pipe is 7.6% than that of the pipe which is full of water.As the average cross velocity comes to the maximum value the velocith unpressure pipe is appropriate 14% than full of water velocity.
基金
陕西省自然科学基金资助项目 ( 2 0 0 1C0 6)
