【摘要】 运用水力学原理,对多孔配水管孔口出流量公式的孔口作用水头、孔口流量系数及沿程孔口出流量的变化问题进行了理论分析和试验验证.研究表明,孔口作用水头应为总水头,其值沿程逐渐减小;多孔配水管孔口流量系数是一个变量,其值沿程逐渐增大,因而使多孔配水管孔口沿程出流量逐渐增大.更多还原

【Abstract】 According to hydraulic principle,the change of efficient water head,discharge coeffi - cient and discharge of orifice along porous pipes have been discussed and checked by experiments in this paper.The experimental results indicate that orifice efficient water head is total water head which decrease along porous.Orifice discharge coefficient is a variable which increase along.Therefore,orifice discharge increase along porous pipes.更多还原