Forum: OpenFOAM Bugs
October 26, 2007, 04:14
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Replies: 62
Views: 10,513
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Forum: OpenFOAM Bugs
October 26, 2007, 03:46
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Replies: 62
Views: 10,513
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Forum: OpenFOAM Bugs
October 26, 2007, 03:44
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Replies: 62
Views: 10,513
Hello Henry,
Thank you for
Hello Henry,
Thank you for your advices,
I am using CrankNicholson ddt scheme, waiting for the new version to be installed.
The results didn't converge yet but i have better profiles, i...
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Forum: OpenFOAM Bugs
October 23, 2007, 11:27
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Replies: 62
Views: 10,513
I only changed readFields.H in
I only changed readFields.H in postChannel, do i have to change anything in the solver? where can i find the bug list for channelOodles?
I will also try Crank-Nicholson scheme.
Thank you so...
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Forum: OpenFOAM Bugs
October 23, 2007, 05:28
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Replies: 62
Views: 10,513
in openFoam:
utau=sqrt(gradp*
in openFoam:
utau=sqrt(gradp*delta/rho)
for each time step and then i calculate the mean value during post processing.
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Forum: OpenFOAM Bugs
October 23, 2007, 05:02
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Replies: 62
Views: 10,513
Yes, i am using the same confi
Yes, i am using the same configuration in both calculations, i fixed a constant flow rate, in openFoam, the mean utau is about 10% off from the DNS value for smagorinsky without vanDriest, when using...
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Forum: OpenFOAM Bugs
October 23, 2007, 03:44
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Replies: 62
Views: 10,513
Hello Henry,
Thank you for
Hello Henry,
Thank you for your reply.
I am using backward ddt scheme.
The wall shear stress velocity(related to the pressure gradient at the wall) is more underestimated in openFoam than...
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Forum: OpenFOAM Bugs
October 22, 2007, 05:09
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Replies: 62
Views: 10,513
These are Umean and vrms profi
These are Umean and vrms profiles, using classic smagorinsky in openFoam and Fluent for Re_tau=395.
In fluent the averages was calculated over a line.
Obviously there is a problem in my rms...
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Forum: OpenFOAM Bugs
October 19, 2007, 08:35
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Replies: 62
Views: 10,513
Hi again,
sorry for being ann
Hi again,
sorry for being annoying again!
I actually ran periodic channels for Re_tau=395, and Re_tau=180. In openFoam and Fluent.
My U mean profile was good, but rms profiles in...
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Forum: OpenFOAM Bugs
October 12, 2007, 03:35
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Replies: 62
Views: 10,513
Hi to all,
I have modified
Hi to all,
I have modified readFields.H, and i compared the rms plots for my channel simulation with DNS, i actually get very close results, for urms, Umean and K but the values of vrms and...
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Forum: OpenFOAM Bugs
July 16, 2007, 05:00
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Replies: 62
Views: 10,513
Hello to everyone,
how do y
Hello to everyone,
how do you guys estimate Re_tau after running few iterations?
u_tau=(nu*(du_x/dy+du_z/dy))^0.53
Do u use postChannel utility? or there is another utility that calculates...
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