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Hi Jon,

You can define the geometric parameter you want to vary as a global variable and then use the parametric sweep.
Alternatively, you can use Matlab to create a script and just run your simulation through a for loop, which can be more difficult to do, but is possible.

Best Regards

You can define the geometric parameter you want to vary as a global variable and then use the parametric sweep.

Chris,

How would you construct a geometry with a dimension that didn't have a definate value?

Also, would this cause problems with the mesh, or does COMSOL automatically compensate the mesh for a variable dimension?

Regards,

-Jon

I found in the COMSOL User's Guide (3.5a) that geometric parametric sweeps are enabled if you have licences for the CAD Import Module and SolidWorks or Autodesk Inventor.

I'm assuming that it will take the initial geometric value from the imported models and then vary them.

I am wondering if there is any other way this can be done without interfacing with other programs, including MATLAB.

Hi

There are basically two ways, the one yu refer to is making SolidWorks (or inventro or the CAD software) to interact with COMSOL, such that COMSOL can change parameters to change the geometry (without chnginf the topology = no new lost boundaries) and you loop around.

This can also be done with MATLAB an you pilot the geometry of COMSOL commands

Another way is to use the mesh deformations and refer to a deformed mesh. There are several examples around, seaarch on the forum, and in the model examples on the COMSOL web site. There is somewhere a goo example of a I beam optimisation. Thi method does not require any CAD interface

Have fun COMSOLING
Ivar