Elmer Discussion Forum

You did not hover the mouse cursor above the "Img" button. That will show the following hint : Insert image: [img]http://image_url[/img] This means you first have to store your image somewhere online (Image Shack, Flickr, Tinypic, Photobucket, Imgur, etc) and then paste the URL between the...

I have to admit I do not understand your problem in detail. If the physical equations are the same (I understand results from Elmer and Ansys are the same for your first case), then perhaps there is a difference in element type/order.

Can't remember the exact situation, but I've seen something like this once before. It had something to do with the encoding of the source files. Compiler couldn't eat a strange symbol in the text file. I've removed it and it worked. But I'm not sure if this is the same issue. What version of fltk an...

If T equals [Te], then both formulas looks the same to me. To answer the question in the topic title; yes. See tutorial "Tutorial 1 - Radiation heat transfer" from the non-GUI tutorials. If you can be more specific about "the result of my code", then you might get a more specific...

I can't seem to build ElmerGui on Slackware64 14.0. The link http://ascend4.org/Building_Elmer_on_Ubuntu_12.04 was pretty helpfull in changing the location for qwt in the ElmerGUI.pri file. I've also disabled VTK by commenting out the line. But I can't fix the issue with OpenCASCADE. Version 6.3 whi...

Read 2.2.1 from the Elmer Model Manual and perhaps do the following tutorials:

8. Laminar incompressible flow passing a step
10. Thermal flow in curved pipe

The velocity on the boundary is propably not what you think it is.

No. The beam tutorial is correct. The force works on the smallest area of 0.1 * 0.05 = 0.005 m^2. The confusing label "Force" in the Linear Elastic boundary condition is actually a pressure. So you enter something with for example the units N/mm^2. To get 2000 N on this surface (one end of...

Boundary parameters could be made easier in ElmerGui. Some boundary condition parameters should be clear for beginners (for example displacement), while others are not so clear. Some are even labelled wrong. For example in the fields for force you do NOT enter newtons or pounds, but in ElmerGui you ...

I don't have much experience using non-linear materials in FEA in general, but I'm also interested in the possibilities using PTFE and elastomer materials with the Elmer solver.

Would it be possible to use the Navier-Stokes equitions with very high viscosities to simulate creep ... ? (just an idea)

In ElmerGui you can only use the existing geometry to assign boundary conditions. So make sure that the division is already present in your geometrical model. For example use GMSH to draw (and optionally mesh) your 2D beam. Then open the mesh in ElmerGui and use Model > Boundary condition > Linear e...