风筒直径
a/风筒摩擦阻力系数g/重力加速度p/风筒内周长L/风筒长度Q/风量
s/风筒截面积
h沿/沿程风雅损失h局/局部风压损失h动/动压最小风压0.70.91.11.30.00030.00030.00030.00039....82.1982.8263.4544.08243104500450045005.55.55.55.50.384650.635850.949851.326657402.0235362199.7806.5151349.8317740.2023536219.9780.6515134.98317
50505050
8192.22582469.669937.16634.8149
