|December 20, 2010, 07:14||
Accuracy of Mesh
Join Date: Dec 2009
Posts: 19Rep Power: 9
Please clarify my questions.
Which mesh gives the proper accuracy either Hexa or Tetra? Under the same mesh size and no of elements?
In transient case, at which point we can take the converged Cd or Cl values we can consider?
|December 24, 2010, 22:05||
this is a bad question
Let us talk about FVM with NS equations
there are different terms in NS equations, like convection and diffusion, and velocity-pressure coupling
the grid type will affect the accuracy , this is sure
but the key points are different,
there are non-uniform , skewness, non-orthogonality type of error sources
so , you should not ask a question like this and expect to get a good answer
Jasak's phd thesis did some great jobs about this points
and if you want to reserach some paper , you can try , errror estimation
as the key word
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