Near wall distance factor
 

Hi everyone ? What is the value of near wall distance factor that you are using ? for sst i used 0.5 Do you calculate or estimate the y+ value in your simulations, is it really a good preocupation ? Thanks.

Re: Near wall distance factor
 

Read the help manual section on near wall meshing.

Re: Near wall distance factor
 

it said just konwing things to use 0.5 in SST and 2.0 with others, but i need more about it. thanks

Re: Near wall distance factor
 

Y+ =0.5 is a good value, but ofcourse it also is very problem specific.The good thing about CFX automatic wall functions is, even if you are between 0.5 to 100 for SST model, it gives you good results. Because it uses low-Re number approximation or log profile approximation wherever they are needed. I hope I am not wrong when I say this.

Re: Near wall distance factor
 

Thanks a lot, i´m going to study carefully this things to find something better. Your post helped me!! Because it is an specifc thing and a few people use this.