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Water Flow Dilemma

by viadanasi
Tags: dilemma, flow, water
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viadanasi
#1
Aug14-14, 02:05 AM
P: 1
If I have a flow , Q1 l/sec and a pressure P1 Bar , Pipe Diameter D1
how can I work out the change in flow if either/or both the Pressure
or Pipe Diameter change. Assuming laminar flow and pipe material
do not change.

Thanks
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russ_watters
#2
Aug14-14, 11:40 AM
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P: 22,315
Welcome to PF!

Start with the affinity laws:
http://www.engineeringtoolbox.com/affinity-laws-d_408.html
Chestermiller
#3
Aug14-14, 12:14 PM
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Chestermiller's Avatar
P: 5,388
Quote Quote by viadanasi View Post
If I have a flow , Q1 l/sec and a pressure P1 Bar , Pipe Diameter D1

how can I work out the change in flow if either/or both the Pressure

or Pipe Diameter change. Assuming laminar flow and pipe material

do not change.



Thanks

Use Hagen poiseulle equation

Chet


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