## Search found 20 matches

22 Feb 2012, 02:01
Forum: ElmerSolver
Topic: Multiple Domains with different physics: multimesh?
Replies: 3
Views: 1876

### Re: Multiple Domains with different physics: multimesh?

Looking further at this problem, it looks like the approach used in the Elmer Tutorial "Thermal Flow in Curved Pipe" is a better way to approach my problem. In this tutorial there are two domains, the fluid and the pipe wall. the HeatSolver solves heat transfer in the pipe, and both the HeatSolver a...
15 Feb 2012, 01:58
Forum: ElmerSolver
Topic: Multiple Domains with different physics: multimesh?
Replies: 3
Views: 1876

### Multiple Domains with different physics: multimesh?

Hello, I am having trouble building a test case to look at solving two domains, with different physics being solved in each. The first domain is just HeatSolver (Temperature), the second domain uses a solver solving Temperature and Potential. I have been using the test case "multimesh" as a guide. m...
11 Feb 2012, 01:57
Forum: External tools
Topic: quadratic elements from Salome to Elmer
Replies: 0
Views: 1563

### quadratic elements from Salome to Elmer

Hello, I've invested a quite a bit in using Salome for geometry and meshing, but have generally exported linear elements to Elmer via a UNV file format and a ElmerGrid conversion. Now, I need to use p-elements (which I think is the same as what Salome calls quadratic elements). I can find no way to ...
04 Feb 2012, 03:54
Forum: ElmerSolver
Topic: FluxSolver results
Replies: 0
Views: 1037

### FluxSolver results

Hello, I am getting results from FluxSolver that I can not improve. I have a very simple example problem where there is fixed temperatures on both sides of a block. The block has cubes of metal on both ends (1x1x1mm) and a block of low thermal conductivity material in the middle. The ends are fixed ...
28 Dec 2011, 09:51
Forum: ElmerSolver
Topic: Navier Stokes Convergence issues
Replies: 1
Views: 1578

### Navier Stokes Convergence issues

Hello, I would like to perform analysis using Navier Stokes and Heat Transfer eventually. As a first step, I set up some tests by just solving the fluid portion of the problem. I am finding it very difficult to get a problem to converge. Generally, I am finding that simple geometries with structured...
26 Aug 2011, 06:00
Forum: ElmerSolver
Topic: poor convergence with flux solver
Replies: 3
Views: 802

### Re: poor convergence with flux solver

Hello, Thank you for the suggestions. I tried the settings for the solver that you recommended, but without a positive result. I am solving the heat equation using a heat source, h, then finding the flux of Temperature. When I turn off h, or significantly reduce the magnitude of h, the flux solver w...
25 Aug 2011, 03:38
Forum: ElmerSolver
Topic: poor convergence with flux solver
Replies: 3
Views: 802

### poor convergence with flux solver

I am calculating the electric field from the electrical potential using fluxsolver. It has very poor convergence. I simplified the model to only about 85 volumes, but the convergence is worse. Solver section: Solver 2 # solve for E field, from the flux of the potential E=-flux(phi) Exec Solver = alw...
12 Aug 2011, 04:30
Forum: ElmerSolver
Replies: 2
Views: 1064

I may have found an approach that works. In order to get access to the material properties as regular variables elsewhere in the .sif, it looks like I need to run 'SaveScalars' ' SaveMaterials' solver first. It looks like this evaluates any material property listed there, and sets it as a nodal vari...
12 Aug 2011, 00:45
Forum: ElmerSolver
Replies: 2
Views: 1064