Better answer with Single v.s. Double precision
 

Hello,

I am wondering if somebody can explain this to me:

My calculation is natural convection in a closed domain.
When I use single precision(sp) the continuity residual is in order of 10e-7 but when I use double precision(dp) the residual is in order of 10e4:eek:(plus 4)

I think dp should work better than sp...mine is not reversed!

Thank you in advance!