Pipe line pressure drop

kirli · February 17, 2013, 05:50

Hi foamers,

I wondering what is the proper solver for my problem..

Description: I have some very high gradient curve pipe system with flow splitter. For now I use simpleFoam solver and kEpsilon turbulent model. My main goal is to calculate the pressure drop of the system.

Thanks

kirli · February 18, 2013, 07:07

And another question....

I use simpleFoam solver for the problem.

When I change the k and epsilon parameters I have no effect on the pressure drop.

Is there a reason for this?

Thanks

santiagomarquezd · March 1, 2013, 17:13

Hi, you have to give a proper initialization for the problem,

http://www.cfd-online.com/Wiki/Turbu...ary_conditions

in addition basic k-epsilon model could not behave well with high curvature pipes (for examples search in google the solution of the U-Bend problem).

Regards.

February 17, 2013, 05:50	Pipe line pressure drop	#1
kirli New Member Join Date: Jan 2013 Posts: 4 Rep Power: 13	Hi foamers, I wondering what is the proper solver for my problem.. Description: I have some very high gradient curve pipe system with flow splitter. For now I use simpleFoam solver and kEpsilon turbulent model. My main goal is to calculate the pressure drop of the system. Thanks

March 1, 2013, 17:13		#3
santiagomarquezd Senior Member Santiago Marquez Damian Join Date: Aug 2009 Location: Santa Fe, Santa Fe, Argentina Posts: 452 Rep Power: 24	Hi, you have to give a proper initialization for the problem, http://www.cfd-online.com/Wiki/Turbu...ary_conditions in addition basic k-epsilon model could not behave well with high curvature pipes (for examples search in google the solution of the U-Bend problem). Regards. __________________ Santiago MÁRQUEZ DAMIÁN, Ph.D. Research Scientist Research Center for Computational Methods (CIMEC) - CONICET/UNL Tel: 54-342-4511594 Int. 7032 Colectora Ruta Nac. 168 / Paraje El Pozo (3000) Santa Fe - Argentina. http://www.cimec.org.ar

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February 18, 2013, 07:07		#2
kirli New Member Join Date: Jan 2013 Posts: 4 Rep Power: 13	And another question.... I use simpleFoam solver for the problem. When I change the k and epsilon parameters I have no effect on the pressure drop. Is there a reason for this? Thanks