Wall shear stress or Cell yPlus

sharif88 · August 13, 2014, 18:08

Hello everyone
I was wondering if anyone knows a macro or a way to obtain wall shear stress on a wall or a macro for obtaining yPlus.
I found the following macro for wall shear but I have no idea how it works,
NV_V(Shear,=,F_STORAGE_R_N3V(f,t,SV_WALL_SHEAR))
if i wanted to calculate the total shear force on a wall boundary do I have to put this macro inside a f_loop? Actually I tried that but it causes the fluent to get stuck on the initialization stage.
Thanks
Majid

Exodiah · August 15, 2014, 16:39

Yes, you need to put this inside a f_loop. Take a look at this thread for reference.

http://www.cfd-online.com/Forums/flu...shear-udm.html

And it would help if you could copy and paste your code here.

August 13, 2014, 18:08	Wall shear stress or Cell yPlus	#1
sharif88 New Member Majid Join Date: Jan 2014 Location: Canada Posts: 23 Rep Power: 12	Hello everyone I was wondering if anyone knows a macro or a way to obtain wall shear stress on a wall or a macro for obtaining yPlus. I found the following macro for wall shear but I have no idea how it works, NV_V(Shear,=,F_STORAGE_R_N3V(f,t,SV_WALL_SHEAR)) if i wanted to calculate the total shear force on a wall boundary do I have to put this macro inside a f_loop? Actually I tried that but it causes the fluent to get stuck on the initialization stage. Thanks Majid

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August 15, 2014, 16:39		#2
Exodiah New Member Join Date: Aug 2014 Posts: 3 Rep Power: 12	Yes, you need to put this inside a f_loop. Take a look at this thread for reference. http://www.cfd-online.com/Forums/flu...shear-udm.html And it would help if you could copy and paste your code here.