Introduction

Elmer is an open source (GPL) computational tool for multi-physics problems. It is developed by CSC in collaboration with Finnish universities, research laboratories and industry. To test ONELAB models working with Elmer, you first need to install the generic ONELAB virtual machine on your system by following these instructions. When done, you can log in into the virtual machine (username: "olvm", passwd: olvm) and proceed with the installation of the Elmer software, and the download of benchmark ONELAB models. The instructions to do so are given in the next section.

Installation

The Virtual machine is configured so that Gmsh and Elmer can be installed straightforwardly by issuing simple commands in a terminal. Proceed as follows.

Step 1: Download installation scripts; Open a terminal by clicking on the "terminal" icon in the launcher panel and issue the command; install_scripts.sh

Then, the command

install_gmsh.sh

will download the nightly-build of Gmsh from http://geuz.org/gmsh, install it, and place a Gmsh icon on the Desktop.

When done, issue the command

install_elmer.sh

which will download the source code of Elmer and compile it on the virtual machine. This may take several minutes.

Now, you have a woking installation of Gmsh and Elmer on the virtual machine. A number of Elmer model examples can be downloaded by issuing the command

getElmerModels.sh

After all, you have a directory "ELMERMODELS" in your home directory with a number of Elmer models, which are now presented with more details.

ONELAB models