decreasing y+
 

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

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.

thak u for replying