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Forum: FLUENT August 26, 2013, 09:04
Replies: 10
Views: 5,392
Posted By flotus1
My bad. Of course you are right it must be 0.004...

My bad. Of course you are right it must be 0.004 seconds.

The Nyquist-criterion commonly used for signal analysis tells nothing about the accuracy at which the frequency is captured.
Imagine you...
Forum: FLUENT August 26, 2013, 02:30
Replies: 10
Views: 5,392
Posted By flotus1
In this case, when comparing the "results" for...

In this case, when comparing the "results" for Mesh A, B and C you actually dont compare the effect of the discretization error.
Since the results on Mesh A and B are not converged, you cannot tell...
Forum: FLUENT August 25, 2013, 12:06
Replies: 10
Views: 5,392
Posted By flotus1
The fact that you achieved a converged solution...

The fact that you achieved a converged solution for the flat plate with a coarser mesh does not mean that it is a grid-independent solution.
What convergence criterion did you use? How many...
Forum: FLUENT August 25, 2013, 05:54
Replies: 10
Views: 5,392
Posted By flotus1
One conclusion we can draw from your results is...

One conclusion we can draw from your results is that you havent achieved a grid-independent solution yet.
The difference between the "medium" and the "fine" mesh is way too high. You will need to do...
Forum: FLUENT August 21, 2013, 16:15
Replies: 10
Views: 5,392
Posted By flotus1
You could run a steady-state simulation. If it...

You could run a steady-state simulation. If it converges well and you are satisfied with the result, I recommend that.

If you need the transient calculation: Simulate more timesteps!
Once the...
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