Check the Y+ value

damienswe · February 25, 2011, 05:48

Hello everybody,

I am modelling an impinging jet over a flat plate heated.
I would like to reach a Y+ value of 1. However The result show a high y+ value above the heated area.
Why the temperature has an influence on the y+ value?
What is the solution for me, modify my mesh??

Thank you in advance!!

Damien

DoHander · February 25, 2011, 09:12

1. Use an y+ calculator to get an estimate:

http://geolab.larc.nasa.gov/APPS/YPlus/

2. Your real y+ can be determined only during the calculations.

Do

damienswe · February 25, 2011, 09:30

Thank you Do,

I modified my post just before you to answer me. sorry :/
I have been speaking with my supervisor this afternoon and the y + question is much clearer for me now. However I have still this question about the temperature, Do you know about it?

Best regards,

Damien

February 25, 2011, 05:48	Y+ value	#1
damienswe New Member Damien Swe Join Date: Feb 2011 Posts: 2 Rep Power: 0	Hello everybody, I am modelling an impinging jet over a flat plate heated. I would like to reach a Y+ value of 1. However The result show a high y+ value above the heated area. Why the temperature has an influence on the y+ value? What is the solution for me, modify my mesh?? Thank you in advance!! Damien Last edited by damienswe; February 25, 2011 at 09:20.

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February 25, 2011, 09:12		#2
DoHander Senior Member Join Date: Nov 2009 Posts: 411 Rep Power: 20	1. Use an y+ calculator to get an estimate: http://geolab.larc.nasa.gov/APPS/YPlus/ 2. Your real y+ can be determined only during the calculations. Do

February 25, 2011, 09:30		#3
damienswe New Member Damien Swe Join Date: Feb 2011 Posts: 2 Rep Power: 0	Thank you Do, I modified my post just before you to answer me. sorry :/ I have been speaking with my supervisor this afternoon and the y + question is much clearer for me now. However I have still this question about the temperature, Do you know about it? Best regards, Damien