Elmer Discussion Forum

Hi, Dear community, I have a doubt about the material section of Level set. -If I couple this solver with the magnetic one, what should the right order of resolution be? -Why don't I have the same results as a classic MHD problem? The level set apparently converges faster in every case in contrast o...

kevinarden wrote: ↑02 Jul 2021, 12:29attached

Hi,
I have tried, but it doesn't converge unfortunately. I attach the image. The velocity profile in the initial condition should be kept during the time in the interface,namely from 0 to h*h1 along x.
-Andrea

kevinarden wrote: ↑02 Jul 2021, 12:29attached

Thanks Kevin, I run it right now,
-Andrea

kevinarden wrote: ↑01 Jul 2021, 23:45 I was informed that the FlowSolver, stokes does not like a complete do nothing conditions on the inlet and outlet, so I made velocity 1 at the intlet and outlet (tangential to the in and out) and it is converging.

Hi Kevin,
Could you share please your case.sif ?
-Andrea

Hi, I have implemented this MHD problem following the case published in GitHUB https://github.com/ElmerCSC/elmerfem/tr ... ntHartmann . Unfortunately I don't manage to understand why it doesn't convergence with this Velocity Profile: Initial Condition 1 ! Pressure = 0.0 Surface = Variable Coordinate...

Thanks, Peter, when I leave empty a boundary condition, what does a natural boundary condition mean? Is a Dirichlet or Neumann condition?
-Andrea

Hi,
I have tried to run the version of the problem published in GitHub: viewtopic.php?f=3&t=7507&start=20, but I don't know why it doesn't work
-What does "Integer BC" mean?
-Why does the convergence monitor plot nothing?
Regards,
Andrea

It can't open the file because it can't find the file, which is caused by directories and how they are specified in the header file Header CHECK KEYWORDS Warn Mesh DB "." "." Include Path "" Results Directory "" End Mesh DB means the location of the mesh file...

Hi,
I am trying to create a restart file, but when I run the case.sif, Elmer points out an error. Thanks in advance for your help.
-Andrea

Dear All, the following definition can be found in several test cases: Equation 1 Active Solvers(2) = 2 3 End Solver 1 is the Procedure = "RigidMeshMapper" "RigidMeshMapper" for rotation, Solver 2 and 3 for solving the relevant equation and Solver 4 is Procedure = "SaveData...