constant pressure drop

February 4, 2008, 15:05

Hi all

I have to simulate the flow and heat transfer in channel under a constant pressure drop and renold No. but the problem is fluent solve the coupling of velocity and pressure and compute them together .I need to solve the momentum equation with constant pressure drop and constant value of Renold No.

Please how to specify the value of pr.drop across the channel with specifying the value of velocity at the inlet to specify the value of Re

Thanks alot

nicolas.sargi · May 19, 2022, 14:24

Hello.

Did you figure out how to specify a pressure drop across a device?

I have a 4.5m*2m cylinder, and I need to specify a pressure drop across the midplane of this cylinder.

An easy way would be to specify this plane as an inlet, and make the relative pressure be the pressure drop, but then I would need to specify the other parameters (temperature etc..), while I only have a pressure drop across the device.

Any help would be appreciated.

Thanks.

February 4, 2008, 15:05	constant pressure drop	#1
Smith Guest Posts: n/a	Hi all I have to simulate the flow and heat transfer in channel under a constant pressure drop and renold No. but the problem is fluent solve the coupling of velocity and pressure and compute them together .I need to solve the momentum equation with constant pressure drop and constant value of Renold No. Please how to specify the value of pr.drop across the channel with specifying the value of velocity at the inlet to specify the value of Re Thanks alot

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Discrepancy between the measurements (pressure drop; VOF)	blackemperor	FLUENT	2	March 6, 2016 03:40
How to install CGNS under windows xp?	lzgwhy	Main CFD Forum	1	January 11, 2011 18:44
CGNS lib and Fortran compiler	manaliac	Main CFD Forum	2	November 29, 2010 06:25
Total and Static Pressure drop	Jaggu	FLUENT	3	December 9, 2008 06:03
Pressure Drop in outlet Vent	Abdul	FLUENT	2	October 28, 2008 12:13

May 19, 2022, 14:24		#2
nicolas.sargi New Member Nicolas Sargi Join Date: May 2022 Posts: 7 Rep Power: 3	Hello. Did you figure out how to specify a pressure drop across a device? I have a 4.5m*2m cylinder, and I need to specify a pressure drop across the midplane of this cylinder. An easy way would be to specify this plane as an inlet, and make the relative pressure be the pressure drop, but then I would need to specify the other parameters (temperature etc..), while I only have a pressure drop across the device. Any help would be appreciated. Thanks.