Select: SI units (metric) U.S. Customary units
Pipe diameter D:
Flow depth y:
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]:
Discharge Q:
Flow velocity V:
Your request was processed at 06:47:50 pm on February 19th, 2019 [ 190219 18:47:50 ].