Design Module

Design Module

Construction and Manipulation of Parametric Geometries for Simulation

Image made using the COMSOL Multiphysics® software and is provided courtesy of COMSOL.

The lofting and fillet commands are used to create the different blades in this impeller.

Design Module

Creating CAD Designs

The Design Module expands the geometric modeling functionality of COMSOL Multiphysics® software by providing additional tools for creating geometries and importing a variety of CAD file formats. The preparation of a geometry is an important part of the simulation process, where the focus is on finding the most suitable way to represent the CAD design for analysis.

This could involve identifying whether certain geometric details are relevant to the analysis or whether a shell approximation can be used instead for the simulation. In other situations, you may need to modify and re-parametrize certain features of an imported CAD design. Or, you may even need to construct a new and simpler parametrized geometry from the ground up, in order to capture the relevant design features for a proper analysis. The Design Module achieves this by manipulating geometries using the Parasolid® geometric kernel.

Import and Export Your Models from and to CAD Software

Import of a number of different file formats – including the Parasolid® software, ACIS® software, STEP, and IGES formats – are supported by the Design Module. Moreover, you can import the native file formats of a number of CAD tools, such as the Autodesk® AutoCAD® software, Autodesk® Inventor® software, NX™ software, PTC® Creo® Parametric™ software, and SOLIDWORKS® software.

The Design Module provides a robust tool to facilitate the integration of both simulation and CAD design within the product development process. When all changes to a geometry have been made, the Design Module can export them in the Parasolid® software or ACIS® software file formats for import into other tools.

Read More     

Product Features

  • Create lofted objects from cross-sectional profiles
  • Apply 3D fillets and chamfers to solid and surface objects
  • Convert solids to surfaces, and vice-versa, using the midsurface and thicken operations
  • File import of the most popular CAD file formats, see table below
  • Encapsulate geometries to model phenomena in the surrounding domains
  • Export geometry files to the Parasolid® and ACIS® file formats
  • Geometry repair through identification of geometric inconsistencies and knitting surfaces to create solids
  • Defeaturing through the finding and deletion of fillets, short edges, sliver faces, small faces, and spikes
  • Manually deleting faces and healing the resulting gaps through filling (creating a new face) or patching (shrinking or expanding adjacent faces)
  • Detaching faces from a solid object to create a new solid object
  • Cap holes or empty spaces to fill the space and create modeling domains
  • Patch removed faces by growing or shrinking the surrounding surfaces to cover the removed face