Open Channel Flow

Open channel flow. Compute hydraulic radius, wetted perimeter, and area for circular culvert

 
 

 

Select calculation: 
Diameter, d (L): 
© 2014 LMNO Engineering, Depth, y (L): 
Research, and Software, Ltd. Top Width, T (L): 
http://www.LMNOeng.com Area, A (L2): 
Wetted Perimeter, P (L): 
Hydraulic Radius, R (L): 
Angle, θ (degrees): 

Open channel flow units: (L) means that the variable has units of length (e.g. meters). (L2) means that the variable has units of length squared (e.g. m2). For instance, enter d, y, and T all in meters or all in inches or all in feet.

Open Channel Flow Culvert Geometry Diagram and Equations:

Open Channel Flow Circular Culvert Geometry

Top width, T, is the top width of the water in the pipe. T=0 if the pipe is empty or full. T=d if the pipe is half full.

Open Channel Flow Culvert Geometry Equations

Open channel flow circular culvert geometry calculation does not check for unreasonable inputs. For open channel flow, please enter 0<y<d, 0<T<d, and d>0.

 

© 1998-2024 LMNO Engineering, Research, and Software, Ltd.  All rights reserved.

Please contact us for consulting or questions about open channel flow.

LMNO Engineering, Research, and Software, Ltd.
7860 Angel Ridge Rd.   Athens, Ohio 45701  USA   Phone: (740) 707-2614
LMNO@LMNOeng.com    https://www.LMNOeng.com

 

To: 
LMNO Engineering home page (more calculations)  

Manning Equation Calculator

Culvert Design using Inlet and Outlet Control

Circular Culverts using Manning Equation

Unit Conversions


Other information:

Register

Discussion and References