Order of numerical scheme
Hello,
I did a 2nd order calculation of a laminar flow in CFX which followed a GCI study (refinement factor r=2, 3 grids, asymptotic range (1.001113)). I observed a rate of convergence of p=1.15. I expected a value a bit less than 2 due to numerical effects but can a value close to 1 still be correct? Thank you very much in advance! 
Yes. All the different bits of the equations can converge at different rates  advection could be second order, bit diffusion could be first, etc etc. So if I find I am in the asymptotic range p which is close then I am happy.

All times are GMT 4. The time now is 19:48. 