Elmer Discussion Forum

Hi Peter,
Radiation boundaries are set to 'open'. (Diffuse Gray). I'm working from ElmerGUI.
That's why the warning confused me.
File attached, if you could not recreate the issue.

Hello, I seem to get this warning (WARNING:: ViewFactors: Rowsum of view factors should not be smaller than one!) in the log on every simulation involving the calculation of viewfactors. The simulation results seem ok. Moreover: isn't it the opposite? The rowsum should be smaller (or equal to) one. ...

Hello, I created a very simple mesh in GMSH. Created the Elmer mesh with ElmerGrid. I get "Program received signal SIGSEGV: Segmentation fault - invalid memory reference." in ElmerGUI, using this mesh. I tracked down the origin of the error and it seems to be that ElmerGrid creates 0DIM bo...

Hi, I created a msh file in GMSH and tried to import it. I got things like: - "File type determined by suffix: 14" (which is ok). - several "Physical groups of dimension 2 not supported in 0-dimensional mesh: ignoring group ... "(??) - several "untreated command; [numbers]&q...

Hi Peter, I was more referring to kevinarden about the hostility. I now installed the VirtualBox version. I seem to be one step further (viewfactors are calculated) but still don't get results (see below). The project files are in this thread. Do you know of a simple example file with grey radiation...

Thanks Raback, I kinda concluded that from my search. It is just that a project gave errors when running and I thought I might be able to narrow done the origin of the problem by executing the separate steps: Viewfactors.exe, GerhardtFactors.exe ... But if I understand you correctly this is not poss...

Hi, My questions: 1/ I get an error (see below). I read something of the need to define the Gebhardt factors when using diffuse grey. Doens't Elmer calculate those? No clear answer as of yet, not in this forum not in the documentation. 2/ how to know what units the entered data is in? Answered throu...

Hello,
running GebhardtFactors.exe from the command line, I get the following error: I have no idea what this means?

Is the GebhardtFactors.exe documented?

Thank you.

Hi kevinarden: Could you explain why you think I did not do that? Except for the source code. Requiring a user to go through the source code for simple questions (see previous posts) seems to me a bit exaggerated. Could you point to the solution(s), if it is al that well documented? I do not underst...

Thank you kevinarden,
I changed the working directory (cd path in Windows Command terminal) to my project folder and then ran viewfactor.exe by typing the complete path ""C:\Program Files\Elmer 8.4-Release\bin\ViewFactors.exe" and that worked perfect.