pressure drop in pipe, prob with y+ and solver

weigsi · January 13, 2011, 12:46

Hi there,
i got a pipe and want to set up a rough boundary, i want to validate the pressure drop of a real pipe...(v=15m/s sry no overall Re yet, diameter 0,2m, fluid is air incompressible), is there any suggestion in choosing solver (in subject to y+) and physic model?
regards weigsi

abdul099 · January 15, 2011, 09:12

I would use the segregated solver, k-e two-layer turbulence model and most other physics models are self-explanatory.

fletc900 · January 20, 2011, 18:16

Another tip: try to keep the y+ in the region of 30<y+<100 if you're using wall functions...

January 13, 2011, 12:46	pressure drop in pipe, prob with y+ and solver	#1
weigsi New Member hhuh huhu Join Date: Jan 2011 Posts: 9 Rep Power: 15	Hi there, i got a pipe and want to set up a rough boundary, i want to validate the pressure drop of a real pipe...(v=15m/s sry no overall Re yet, diameter 0,2m, fluid is air incompressible), is there any suggestion in choosing solver (in subject to y+) and physic model? regards weigsi Last edited by weigsi; January 13, 2011 at 13:53.

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January 15, 2011, 09:12		#2
abdul099 Senior Member Join Date: Oct 2009 Location: Germany Posts: 636 Rep Power: 22	I would use the segregated solver, k-e two-layer turbulence model and most other physics models are self-explanatory.

January 20, 2011, 18:16		#3
fletc900 New Member Bruno F. Join Date: Feb 2010 Location: Boulder, CO Posts: 17 Rep Power: 16	Another tip: try to keep the y+ in the region of 30<y+<100 if you're using wall functions...