Search found 54 matches

by kishpishar
13 May 2021, 17:41
Forum: ElmerSolver
Topic: HARTMANN PROBLEM
Replies: 20
Views: 5327

Re: HARTMANN PROBLEM

Attached is a worked out example of MHD flow of a viscous liquid between 2 parallel plates. It is very similar to the example discussed here: https://www.openfoam.com/documentation/tutorial-guide/2-incompressible-flow/2.3-magnetohydrodynamic-flow-of-a-liquid The effect of magnetic field on the flow ...
by kishpishar
12 May 2021, 14:20
Forum: ElmerSolver
Topic: HARTMANN PROBLEM
Replies: 20
Views: 5327

Re: HARTMANN PROBLEM

Hi Andrea, Here are the relevant sections in my case that may be applicable to your problem. Please note that I preferred a transient approach for a smoother convergence behavior. Simulation Max Output Level = 5 Coordinate System = Cartesian Coordinate Mapping(3) = 1 2 3 Simulation Type = Transient ...
by kishpishar
12 May 2021, 12:32
Forum: ElmerSolver
Topic: HARTMANN PROBLEM
Replies: 20
Views: 5327

Re: HARTMANN PROBLEM

Hi Andrea, Isn't this a standard Magneto-Hydrodynamics problem which you are trying to solve - where you are only interested in the effect of external magnetic field on the flow in the channel? In that case, Navier-Stokes along with the old "Magnetic field solver" would be perhaps good eno...
by kishpishar
06 Dec 2020, 16:17
Forum: ElmerSolver
Topic: Turbulent Flow Simulations with Elmer - A Request
Replies: 33
Views: 20030

Re: Turbulent Flow Simulations with Elmer - A Request

Hi Peter, I have also tried using the FCT version of the solver. When FCT corrections are applied, the solver runs just fine in the beginning but eventually crashes. To activate the FCT, I have turned both the stabilization and Bubbles off (standard SUPG stabilization anyway is not implemented for t...
by kishpishar
06 Dec 2020, 13:30
Forum: ElmerSolver
Topic: Turbulent Flow Simulations with Elmer - A Request
Replies: 33
Views: 20030

Re: Turbulent Flow Simulations with Elmer - A Request

Hi Julien, Just compile the solver file in the case directory, you'll find KEpsSolver.dll in the same directory. Please add the statement Procedure = "KEpsSolver" "KEpsSolver" in the solver section of your case file. In my example, the respective case files are given above and yo...
by kishpishar
05 Dec 2020, 21:42
Forum: ElmerSolver
Topic: Turbulent Flow Simulations with Elmer - A Request
Replies: 33
Views: 20030

Re: Turbulent Flow Simulations with Elmer - A Request

And here the case files and the solver source file.
by kishpishar
05 Dec 2020, 21:39
Forum: ElmerSolver
Topic: Turbulent Flow Simulations with Elmer - A Request
Replies: 33
Views: 20030

Re: Turbulent Flow Simulations with Elmer - A Request

Hi All, I'm back with some more encouraging results! I am not really into Elmer programming and my involvement with FEM is even lesser, so it took a while for me to get a feel of what's going on at the solver level. Actually the modified solver using the E/K ratio as the auxiliary variable does inde...
by kishpishar
11 Oct 2020, 21:50
Forum: ElmerSolver
Topic: BDF order setting on the example "Vortex shedding"
Replies: 8
Views: 3722

Re: BDF order setting on the example "Vortex shedding"

Hi Thomas, Generally higher order BDF may give you an edge with respect to numerical stability of the solution, but that might not be the bottleneck in simulating natural convection. Simulating natural convection to a high degree of fidelity is notoriously difficult, mostly due to the highly unstabl...
by kishpishar
24 Sep 2020, 17:14
Forum: ElmerSolver
Topic: Turbulent Flow Simulations with Elmer - A Request
Replies: 33
Views: 20030

Re: Turbulent Flow Simulations with Elmer - A Request

Sorry, the attachment is still not there.
by kishpishar
24 Sep 2020, 13:36
Forum: ElmerSolver
Topic: Turbulent Flow Simulations with Elmer - A Request
Replies: 33
Views: 20030

Re: Turbulent Flow Simulations with Elmer - A Request

The attachment didn't work. So here they are.