Y+

saha2122 · February 13, 2011, 13:44

hi every body
happy valentines day !!!!!

i modeled a very complicated geometry!!! unfortunately when i check the wall Y+ , in fluent , it is so high, near 10^3 !!!!!!!!!!

but my computational results are physically true!!!

i have 8 core computer,then i cant use so so fine meshing!!!!!!!!! what should i do?

plz help me

!!!!!!!!!!!!!

Mohankumarg12 · February 13, 2011, 22:51

Hi
In practice if you r using enhanced wall treatment approach then ur Y+ should be <1 & atleast 10 cells withinn y+ = 5. If you have problem in maintaining this, then you can go for Wall function approach or standard wall functions and maintain a y+ of 30 < Y+ < 300.

Mohan.G

February 13, 2011, 13:44	Y+	#1
saha2122 Member Join Date: Apr 2010 Posts: 63 Rep Power: 16	hi every body happy valentines day !!!!! i modeled a very complicated geometry!!! unfortunately when i check the wall Y+ , in fluent , it is so high, near 10^3 !!!!!!!!!! but my computational results are physically true!!! i have 8 core computer,then i cant use so so fine meshing!!!!!!!!! what should i do? plz help me !!!!!!!!!!!!!

February 13, 2011, 22:51	Y+	#2
Mohankumarg12 Member Mohankumar.G Join Date: Sep 2010 Location: Pune,India Posts: 44 Rep Power: 16	Hi In practice if you r using enhanced wall treatment approach then ur Y+ should be <1 & atleast 10 cells withinn y+ = 5. If you have problem in maintaining this, then you can go for Wall function approach or standard wall functions and maintain a y+ of 30 < Y+ < 300. Mohan.G