Wall Function

firb86 · February 13, 2017, 12:31

Does Flow 3D have a wall functions? How does the phenomenon solve when y+>5?

Best regards

bfox48 · February 14, 2017, 15:27

When the turbulence models are turned on, then FLOW3D applies the logarithmic wall function in the cells intersecting a surface. It assumes the center of the cells is with the turbulent region of the logarithmic velocity profile, which is approx: 30<y+<1000.

Lots of explanation in the user manual.

nauman maldar · March 11, 2020, 02:26

Quote:

Originally Posted by bfox48

When the turbulence models are turned on, then FLOW3D applies the logarithmic wall function in the cells intersecting a surface. It assumes the center of the cells is with the turbulent region of the logarithmic velocity profile, which is approx: 30<y+<1000.

Lots of explanation in the user manual.

Can you please tell me in which version and section of the user manual it is explained about y plus and wall function in FLOW3D? I am unable to find

zohran · March 11, 2020, 04:31

Quote:

Originally Posted by nauman maldar

Can you please tell me in which version and section of the user manual it is explained about y plus and wall function in FLOW3D? I am unable to find

Model Reference --> Wall Shear

February 13, 2017, 12:31	Wall Function	#1
firb86 New Member Freddy Rodriguez B Join Date: Feb 2017 Posts: 1 Rep Power: 0	Does Flow 3D have a wall functions? How does the phenomenon solve when y+>5? Best regards

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February 14, 2017, 15:27		#2
bfox48 New Member brian Join Date: Apr 2012 Posts: 25 Blog Entries: 1 Rep Power: 14	When the turbulence models are turned on, then FLOW3D applies the logarithmic wall function in the cells intersecting a surface. It assumes the center of the cells is with the turbulent region of the logarithmic velocity profile, which is approx: 30<y+<1000. Lots of explanation in the user manual.