what does this simulation means

[klaas2]

"close to wall" physic simulation.?

cfd close to wall simulation

i am new to cfd
i just simply do not understand
if you want to simulate a motor bike cyclist whta kind of simulation for airflow do you need??

klaas

 

[IRstuff]

http://www.dogpile.com/info.dogpl/s.../-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/417/bottom

TTFN

 

[klaas2]

i am stupid !
still do not understand what close to wall means
lots of formula's but no explemnation

 

[btrueblood]

Find an elementary aerodynamics or fluid dynamics textbook, and read the section regarding boundary layers, as a start.