Forum: OpenFOAM Running, Solving & CFD
July 2, 2019, 10:37
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
July 2, 2019, 10:19
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Replies: 45
Views: 19,420
Hi,
I can only think of the 3rd-order...
Hi,
I can only think of the 3rd-order Runge-Kutta as a reply, which is of-course 3rd-order accurate in time but demands fewer number of pressure correction steps. I have already implemented that...
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Forum: OpenFOAM Running, Solving & CFD
May 22, 2019, 05:16
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
April 4, 2019, 06:42
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Replies: 45
Views: 19,420
I guess the main motive behind RK4 was its...
I guess the main motive behind RK4 was its temporal accuracy (4th order) over PISO with 2nd order accuracy. Some acoustic solvers may benefit from that. Putting it aside, I see no particular reason...
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Forum: OpenFOAM Running, Solving & CFD
April 4, 2019, 06:36
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
April 4, 2019, 06:30
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Replies: 45
Views: 19,420
Hi,
The runtime depends on the number of...
Hi,
The runtime depends on the number of processes as well. I have compared both pisoFoam and RK4 in LES simulations with cell number in order of 1e+8 and over 100 processes. I found them quite...
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Forum: OpenFOAM Running, Solving & CFD
March 22, 2018, 15:21
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Replies: 45
Views: 19,420
Dear Yu Cheng,
Very good idea. I have...
Dear Yu Cheng,
Very good idea. I have modified the solver to be able to take a constant source term into account. I have also provided a lid-driven cavity example with the new RK4Foam solver. I...
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Forum: OpenFOAM Running, Solving & CFD
March 18, 2018, 05:23
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Replies: 45
Views: 19,420
Thanks fo your comment Yu Cheng. I have...
Thanks fo your comment Yu Cheng. I have implemented the RK4 solver with the help of Dr. Vuorinen and your comment. Please check the file attached and let me know if there is something not right with...
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Forum: OpenFOAM Running, Solving & CFD
August 21, 2015, 12:09
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
August 20, 2015, 14:04
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
August 20, 2015, 11:48
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
August 20, 2015, 11:14
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Replies: 45
Views: 19,420
All right,
As something that migh matter,...
All right,
As something that migh matter, should any modifications be applied in controlDict, fvScheme, or fvSolution?!
Edit: I have encountered the following error during runtime,
-->...
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Forum: OpenFOAM Running, Solving & CFD
August 20, 2015, 10:13
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Replies: 45
Views: 19,420
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Forum: OpenFOAM Running, Solving & CFD
August 20, 2015, 09:48
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Replies: 45
Views: 19,420
Thanks for quick reply!!
Now I am getting an...
Thanks for quick reply!!
Now I am getting an error like this:
syavash@syavash-VPCF11DGX:~/OpenFOAM/OpenFOAM-2.3.1/applications/solvers/incompressible/rk4projectionFoam$ wmake
options:2:66:...
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Forum: OpenFOAM Running, Solving & CFD
August 20, 2015, 09:24
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Replies: 45
Views: 19,420
Thanks Ville,
I have proceeded as the steps...
Thanks Ville,
I have proceeded as the steps in your paper have suggested, but I have encountered some problems in creating the new solver:
1-The variables Uold, Uc, and dU are not defined, so I...
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Forum: OpenFOAM Running, Solving & CFD
August 19, 2015, 16:46
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Replies: 45
Views: 19,420
Dear Ville,
Is it possible to share your...
Dear Ville,
Is it possible to share your incompressible solver?! I am sure many people like me seek for an explicit low-dissipation solver for LES-like simulation.
Syavash.
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