Select: SI units (metric) U.S. Customary units
Pipe diameter D:
Discharge Q:
Bottom slope S:
Manning's n:
Constant k:
Flow area A:
Wetted perimeter P:
Hydraulic radius R:
Relative depth y/D:
Froude number [based on y]:
Flow depth y:
Flow velocity V:
Your request was processed at 08:18:57 am on February 22nd, 2019 [ 190222 08:18:57 ].