Water Flow Dilemma

  • Thread starter viadanasi
  • Start date
  • #1
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Main Question or Discussion Point

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
 

Answers and Replies

  • #2
russ_watters
Mentor
19,712
6,053
Welcome to PF!

Start with the affinity laws:
http://www.engineeringtoolbox.com/affinity-laws-d_408.html
 
  • #3
20,332
4,301
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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