常用风管水力半径查询表

RL=(a*b)/2*(a+b)边长a边长b0.40.20.40.30.40.40.50.20.50.30.50.40.50.50.60.20.60.30.60.40.60.50.60.60.70.20.70.30.70.40.70.50.70.60.70.70.80.20.80.30.80.40.80.50.80.60.80.70.80.80.90.30.90.40.90.50.90.60.90.70.90.810.310.410.510.610.710.81.10.31.10.41.10.51.10.61.10.71.10.81.20.41.20.51.20.61.20.71.20.81.3

0.4

截面积周长0.081.20.121.40.161.60.101.40.151.60.201.80.2520.121.60.181.80.2420.302.20.362.40.141.80.2120.282.20.352.40.422.60.492.80.1620.242.20.322.40.402.60.482.80.5630.3.20.272.40.362.60.452.80.30.633.20.723.40.302.60.402.80.5030.603.20.703.40.803.60.332.80.4430.553.20.663.40.773.60.883.80.483.20.603.40.723.60.843.80.90.52

3.4

水力半径RL

0.070.090.100.070.090.110.130.080.100.120.140.150.080.110.130.150.160.180.080.110.130.150.170.190.200.110.140.160.180.200.210.120.140.170.190.210.220.120.150.170.190.210.230.150.180.200.220.240.15

1.30.51.30.61.30.71.30.81.40.41.40.51.40.61.40.71.40.81.50.41.50.51.50.61.50.71.50.81.60.41.60.51.60.61.60.71.60.80.653.60.783.80.9141.044.20.563.60.703.80.8440.984.21.124.40.603.80.70.904.21.0.41.204.60.40.804.20.9.41.124.61.284.80.180.210.230.250.160.180.210.230.250.160.190.210.240.260.160.190.220.240.27