yPlus and wallfunctions in rotating walls

Yuby · April 20, 2015, 08:50

HI FOAMers! How are you?

Could you please help me in this issue?

I am working a external incompressible turbulent flow around a rotating disc. My questions are:

- Wall functions can be used for rotating walls?

- If so, what are the correct values of yPlus for standard kepsilon and standard komega?

In pitzDaily tutorial is used standard kepsilon model, and it has this yPlus values for the latest time:

Code:

Patch 2 named upperWall y+ : min: 5.46758 max: 14.464 average: 10.055

Patch 3 named lowerWall y+ : min: 0.822923 max: 26.3104 average: 15.8846

Is this interval correct for my case?

Thank you very much in advance!

epsilon
eps
I am using wallfunctions: kqRwallfunction, omegawallfunction, nutkwallfunction and epsilonwallfunction

Yuby · April 20, 2015, 11:32

I always have though that standard k omega model requieres yPlus<1, but I am finding some posts that say other numbers...

April 20, 2015, 08:50	yPlus and wallfunctions in rotating walls	#1
Yuby Member Rubén Join Date: Oct 2014 Location: Munich Posts: 47 Rep Power: 11	HI FOAMers! How are you? Could you please help me in this issue? I am working a external incompressible turbulent flow around a rotating disc. My questions are: - Wall functions can be used for rotating walls? - If so, what are the correct values of yPlus for standard kepsilon and standard komega? In pitzDaily tutorial is used standard kepsilon model, and it has this yPlus values for the latest time: Code: Patch 2 named upperWall y+ : min: 5.46758 max: 14.464 average: 10.055 Patch 3 named lowerWall y+ : min: 0.822923 max: 26.3104 average: 15.8846 Is this interval correct for my case? Thank you very much in advance! epsilon eps I am using wallfunctions: kqRwallfunction, omegawallfunction, nutkwallfunction and epsilonwallfunction Last edited by Yuby; April 21, 2015 at 02:55.

April 20, 2015, 11:32		#2
Yuby Member Rubén Join Date: Oct 2014 Location: Munich Posts: 47 Rep Power: 11	I always have though that standard k omega model requieres yPlus<1, but I am finding some posts that say other numbers...