[ANSYS Meshing] decreasing y+

mehran.mo · August 25, 2016, 03:16

hi
i'm trying to meshing this geometry my mesh quality is good my y+ is about 60 but in section that multiphas is began is about 300 how can i Decrease it? my mesh size close to wall is 1mm and my vlosity in multiphase section is 2m/s , water come from nozzle and go out from diffuser and that above box is air.
thanks

harry94 · August 25, 2016, 07:33

Run the simulation with what you have and graph out the y+ values you obtain after convergence. Then you can use the solver to target specific values of y + (I think it comes under the modify menu in the top toolbar) and run the simulation again for ~800 iterations. Check your result and keep repeating and checking what sort of values you are getting.

mehran.mo · August 30, 2016, 07:37

thak u for replying

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August 25, 2016, 07:33		#2
harry94 New Member Harry Eggo Join Date: Feb 2016 Posts: 10 Rep Power: 10	Run the simulation with what you have and graph out the y+ values you obtain after convergence. Then you can use the solver to target specific values of y + (I think it comes under the modify menu in the top toolbar) and run the simulation again for ~800 iterations. Check your result and keep repeating and checking what sort of values you are getting.

August 30, 2016, 07:37		#3
mehran.mo New Member mehran mohammadi Join Date: Aug 2016 Posts: 13 Rep Power: 9	thak u for replying