Inputs
Shape
Calculate
Known limit
Result
Calculated duct size
Diameter 400 mm
Actual velocity 3.98 m/s
Airflow
500 L/s
Velocity
3.98 m/s
Friction
0.47 Pa/m
Pressure drop
1.41 Pa
Area
0.1257 m2
Equivalent diameter
400 mm
Flow
0.5 m3/s
Reynolds number
104999
Required diameter
357 mm