管径水力坡度粗糙系数充满度角度湿周过流面积(m)///(弧度)(m)(m2)DInh/DθωA0.200.08000.01400.601.770.350.0197θhD流量:Q=A*V流速:V=1n*R过流面积:A=湿周:ω=θ*D水力半径:R=水深:h=充满度:h/D=23*I12θ-sinθ*cosθ4*D2θ-sinθ*cosθ4θ*D=A/ω(1-cosθ)2*D(1-cosθ)2一定充满度下管道的流量计算公式水力半径流速流量流量流量(m)(m/s)(L/s)(m3/s)(m3/h)RVQQQ0.05552.940657.87350.0579208.3445θhD流量:Q=A*V流速:V=1n*R过流面积:A=湿周:ω=θ*D水力半径:R=水深:h=充满度:h/D=23*I12θ-sinθ*cosθ4*D2θ-sinθ*cosθ4θ*D=A/ω(1-cosθ)2*D(1-cosθ)2一定充满度下管道的流量计算公式