论文部分内容阅读
一、简算式介绍水管按水力坡降计算水头损失,一般采用的公式为:I=λ·1/D·V~2/2g……………………(1)式中 I:水力坡降λ:摩阻系数D:管道计算内径(m)V:平均流速(m/s)g:重力加速度(m/s~2)应用上式,须根据运动粘滞系数,流速
First, the simple formula to introduce Water head loss calculation by hydraulic slope, the general formula is: I = λ · 1 / D · V ~ 2 / 2g ........................ (1) Where I: Hydraulic slope Drop λ: Frictional Resistance D: Pipe Diameter Calculated (m) V: Average Flow Rate (m / s) g: Gravitational Acceleration (m / s ~ 2) The above formula shall be based on the coefficient of kinematic viscosity,