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Search: Posts Made By: RodriguezFatz
Forum: Main CFD Forum March 25, 2014, 07:44
Replies: 25
Views: 2,499
Posted By RodriguezFatz
I don't know which tool you use (Fluent,...

I don't know which tool you use (Fluent, Openfoam, CFX, ...).
Forum: Main CFD Forum March 20, 2014, 08:41
Replies: 25
Views: 2,499
Posted By RodriguezFatz
Maimouna, you need to measure the frequency! Get...

Maimouna, you need to measure the frequency! Get any value that shows you the frequency, such as pressure at some point, or the force on the cylinder, velocity at some point... and plot this over...
Forum: Main CFD Forum May 17, 2013, 07:14
Replies: 25
Views: 2,499
Posted By RodriguezFatz
Sorry, I mean the actual flow field (e.g....

Sorry, I mean the actual flow field (e.g. velocity), not the mesh.
You should have a look at the spatial sampling of the velocity, perpendicular to the wall. You need to ensure, that the boundary...
Forum: Main CFD Forum May 17, 2013, 02:54
Replies: 25
Views: 2,499
Posted By RodriguezFatz
You should have a look at the boundary layer at...

You should have a look at the boundary layer at your cylinder and see how many grid points you use to resolve it.
Forum: Main CFD Forum May 16, 2013, 10:55
Replies: 25
Views: 2,499
Posted By RodriguezFatz
No, unfortunately not, and I am currently running...

No, unfortunately not, and I am currently running computationally expesive simulations, so I can't just give it a try...
Maybe tomorrow.

Btw: You mean St=0.16 and not 1.6 in your first post,...
Forum: Main CFD Forum May 16, 2013, 10:43
Replies: 25
Views: 2,499
Posted By RodriguezFatz
500 time steps is really huge... 50 should be by...

500 time steps is really huge... 50 should be by far enough as far as I know.

No, sorry I don't mean the hight of the cylinder but the "other" dimension of your 2d flow domain. But sorry I just...
Forum: Main CFD Forum May 16, 2013, 09:40
Replies: 25
Views: 2,499
Posted By RodriguezFatz
How many time steps per cycle do you have? How...

How many time steps per cycle do you have? How much do the residuals go down each time step? How large is the domain perpendicular to the flow?

Maybe you want to have a look at this thread:...
Forum: Main CFD Forum May 16, 2013, 08:36
Replies: 25
Views: 2,499
Posted By RodriguezFatz
Can you also tell us the density and the...

Can you also tell us the density and the viscosity?
Forum: Main CFD Forum May 16, 2013, 08:18
Replies: 25
Views: 2,499
Posted By RodriguezFatz
Hi, what size is your domain, i.e. how many D...

Hi, what size is your domain, i.e. how many D upstream and downstream of the cylinder?
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