Pressure drop match

praveen.jpk · September 9, 2009, 05:54

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

September 9, 2009, 05:54	Pressure drop match	#1
praveen.jpk New Member Praveen Kumar Jagarlapudi Join Date: Sep 2009 Posts: 7 Rep Power: 16	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.

September 10, 2009, 01:47		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	is your massflow rate in agreement yith your prediction? have you check your unit (scale) how did you compute the pressure drop? __________________ In memory of my friend Hervé: CFD engineer & freerider

September 11, 2009, 03:36		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	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 __________________ In memory of my friend Hervé: CFD engineer & freerider

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September 11, 2009, 03:19		#3
praveen.jpk New Member Praveen Kumar Jagarlapudi Join Date: Sep 2009 Posts: 7 Rep Power: 16	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.