Depths Of Flow In Pipe
Depths Of Flow In Pipe
(OP)
Ladies & Gents
Please excuse lack of knowledge but I am still learning.
If I know a flow in a pipe, plus all the pipe characteristics eg. Grade diameter "n" value how do I establish the depth of flow the get my wetted perimeter.
Where this is leading is I have to prove that I have slime stripping flow and velocity in a sewer pipe. Problem is I know the pipe is not flowing full and I am unclear on how to establish the depth of flow to calculate the wetted perimeter to proceed with my mannings calculation.
Any help would be appreciated.
Please excuse lack of knowledge but I am still learning.
If I know a flow in a pipe, plus all the pipe characteristics eg. Grade diameter "n" value how do I establish the depth of flow the get my wetted perimeter.
Where this is leading is I have to prove that I have slime stripping flow and velocity in a sewer pipe. Problem is I know the pipe is not flowing full and I am unclear on how to establish the depth of flow to calculate the wetted perimeter to proceed with my mannings calculation.
Any help would be appreciated.
RE: Depths Of Flow In Pipe
But if you are just looking for v/vfull relationships, use Q/Qfull to get d/D. Go to pages 111-113 in this Manual:
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Engineering is the practice of the art of science - Steve
RE: Depths Of Flow In Pipe
RE: Depths Of Flow In Pipe
z=D/2-y
A=cos^-1 (Z/r)
P=DA
R=A/P
"Angle in Radians"
Y= depth from invert
A=angle from vert to radius matching water surface
Z=center of pipe to water surface (r-y)
Hope this helps I tried to bring in a sketch but could not.