[Jordi P.]

Hello!

I'm meshing a cross flow heat exchanger and I don't know how to define the correct spacing near the wall. Is there some formula to find this correct spacing?. When I say "correct" I mean the wall Yplus be less than 1.

Jordi

[aeroAngel]

you can calculate the boundary layer first row height regarding to the flow condition you have with this program that NASA provides:

http://geolab.larc.nasa.gov/APPS/YPlus/

[Jordi P.]

Originally Posted by aeroAngel

you can calculate the boundary layer first row height regarding to the flow condition you have with this program that NASA provides:

http://geolab.larc.nasa.gov/APPS/YPlus/

Thanks very much! the program works well, but in my case (turbulent flow passing around some cilinders) after calculating with it I've had to do 1 Wall Yplus adapt, but after doing this, Y+ is less than 1. Bye!

Jordi P.