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December 17, 2009, 17:10 |
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#21 | |
Member
Muhammed Asmail
Join Date: Nov 2009
Location: Iraq
Posts: 43
Rep Power: 17 |
Quote:
please give me the options of fluent to reach strouhal number field i am waiting your reply regards |
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December 17, 2009, 18:47 |
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#22 |
Senior Member
karine
Join Date: Nov 2009
Posts: 158
Rep Power: 17 |
Hi Muhammed
I dont know how to do it in Fluent I do it on Matlab In fluent, put a point behind ure sphere and monitor velocity in it. The data that u will get, u must treat it on Matlab with a fast fourrier transform to get the frequency of ure coherent structures. If ure Re is <120 (i think) u will not get any vortex schedding: u will get a toroidal vortex.... (there is no strouhal number field: there is ONE Strouhal number in ure flow) Hope that i was clear |
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December 18, 2009, 04:00 |
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#23 | |
Member
Muhammed Asmail
Join Date: Nov 2009
Location: Iraq
Posts: 43
Rep Power: 17 |
Quote:
in the past and by chance and from options of fluent , i found the box contain Strouhal Number but i forget the option and help of my fluent not found in my computer,please can you find this option from your help of your fluent ,can you send example in the matlab in order to strouhal Number to my e-mail(muham76@yahoo.com) i am waiting your reply many thanks |
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December 18, 2009, 16:32 |
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#24 |
Senior Member
karine
Join Date: Nov 2009
Posts: 158
Rep Power: 17 |
Hi
In fact, Fluent is able to do a FFT but i had ever tried it....it is bette anyway to do it on matlab ot mathematica... for matlab i dont have it for instance to help u ...sorry...but if i rememeber good, the function name is FFT hope that somebody can help u more |
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