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Old 01/10/2008, 04:20 PM   #21
nodbugger
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Join Date: May 2004
Location: Chicago ,Illinois
Posts: 533
High speed, low drag. Low speed, high drag.

A sudden expansion in pipe sizes will decrease the flow and it will suffer from head loss because the water has to slow down, which also increases the pressure.



http://www.efm.leeds.ac.uk/CIVE/CIVE...pe%20flow2.pdf


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