Open Source CAE Software
The silentdynamics engineers have a long tradition in using open source engineeringÂ software for solving their CAE tasks. This is because free engineering software opens up numerous opportunities:
- the absence of any licensing costs, particularly in massively parallel HPC applications
- open source code makes many adjustments to specific requirements possible
We want to share ourÂ knowledge and assist others in successful application of open source software. This includes
What we use
It has all the features that are necessary for a successful application of computational fluid dynamics. On top of that the source code is completely open and it is entirely free of charge. In conjunction with the good parallel scalability, this opens up great potential for increasing productivity and design safety with simultaneous cost reduction.
The focus of OpenFOAM is on computational fluid dynamics. But through the open and modular architecture, the software is also ideal for solving other tasks, such as calculation of electric and magnetic fields. In particular, highly customized solutions can be developed excellently by the limitless customization possibilities of an open source software.
Compared with other free FEM programs, Code_Aster stands out with its pretty complete functionality. In addition to the numerical solver which works both in serial and parallelized, there is the pre- and postprocessing Workbench "Salome" for editing, meshing and visualizing the models and results.
Since Code_Aster is developed and used for the calculation of nuclear reactors, the code is subject to a comprehensive quality control, which is another unique property.
The special software architecture of Code_Aster enables extensive automation of all calculation processes
Individual open source projects often meet only subtasks in analysisÂ process. To automate repetitive computational tasks, a combination of several open source engineering softwareÂ tools is often required. In order to use open source software productive and efficient for everyday tasks, the analysis automation frameworkÂ Insight CAE is provided by silentdynamics.
Insight CAE serves as a framework for the implementation of analysisÂ procedures. The objective is to provide interfaces to the tools and simulation programs that are needed for a specific computing task.
- Common practice in numerical simulations is a manual workflow
InsightCAE provides tools to automate simulation workflows:
- A best practice can be stored for reoccurring tasks
- The user only needs to provide a minimum number of parameters
- A graphical user interface (GUI) is provided to edit parameters and see the workflow documentation
Please see our presentation for more details:
InsightCAE comprises multiple components. Documentation for a number of components can be found here:
ISCAD is a script-based CAD program. Features include:
- based on OpenCASCADE, import of IGES, STEP, BREP
- fully parametric parts, constraint-based sketches (through FreeCAD), assemblies, part library, drawing export (DXF)
- entity selection by filtering commands
- embedded meshing through gmsh and snappyHexMesh
See the User Guide for more informations.
Case builder is an interactive tool to build OpenFOAM cases from feature elements.
See the Tutorial for more informations.
The source code is hosted at sourceforge: http://sourceforge.net/projects/insightcae/
Add the silentdynamics apt repository and the associated key by executing (as root):
$ sudo add-apt-repository http://downloads.silentdynamics.de/ubuntu $ sudo apt-key adv --recv-key --keyserver keys.gnupg.net 79F5CBA4 $ sudo apt-get update
Install the software by executing
$ sudo apt-get install insightcae-base
If you encounter problems, bugs or for development wishes, please create tickets here: https://sourceforge.net/p/insightcae/tickets
Build From Sources
$ git clone git://git.code.sf.net/p/insightcae/code insight-src
CMake is utilized for building the software out of source in a separate build directory. Create a build directory, then configure the build using e.g. ccmake and finally build using make:
$ mkdir insight && cd insight $ ccmake ../insight-src $ make
Some environment variables need to be set up. A script is provided therefore. It can be parsed e.g. in your ~/.bashrc script by adding to the end:
We implement automated anlyses according to your needs and specifications, e.g. by creating new specialized modules for Insight CAE.
- speed up your routine work
- reduce human errors
- make complicated anlyses accessible to unexperienced users
Some examples of workflows which we created for our customers: