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-   -   Pressure drop match (http://www.cfd-online.com/Forums/fluent/68175-pressure-drop-match.html)

praveen.jpk September 9, 2009 05:54

Pressure drop match
 
Dear all,

I have a question please clarify.

I have a problem in matching pressure drops at inlet and outlet in a flow through bend pipe. I have certain pressure drop to match like 200 pascals. But i am getting only 20 pascals pressure drop. I gave velocity inlet and pressure outlet as my B.C's.

How can i get the pressre drop of 200 pascals for the given velocity.

Its very urgent.



Thanks in advance.

-mAx- September 10, 2009 01:47

is your massflow rate in agreement yith your prediction?
have you check your unit (scale)
how did you compute the pressure drop?

praveen.jpk September 11, 2009 03:19

mass flow rate & volume flow rate matched at inlet & outlet.
Units are taken care.
Pressure drop(20 mm of water cloumn) = pressure difference between inlet & outlet.

Pressure drop(225 mm of water cloumn) provided by the customer.

-mAx- September 11, 2009 03:36

how did you proceed to compute the pressure drop within fluent?
You should do followings:
*report/surface (area weighted surface with total pressure), choose inlet and note the value
*the same with outlet
*computing the difference will give you the pressure drop


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