what is the Typical cell size?
am trying to run unsteady case, and in order to do that I need to estimate (delta t)
delta t= Typical cell size/characteristic flow velocity (this eqution from fluent.com) can any body help in this thanks |
Re: what is the Typical cell size?
In 3d you could use cube root of volume/#_of_cells. Just an estimate.
HTH |
Re: what is the Typical cell size?
Hi!
i would use the finest grid cell for calculation. So you can be sure that flow is resolved everywhere Best whises Ralf |
which one is preferred to be used? both approximations are applicable.
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Quote:
If your mesh is relatively uniform, then you may estimate cell size as cubic root of Domain Volume / Number of Cells. Anyway it is safe to use minimum cell size. |
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