Hi Steven,
If you got the electrostatic force to work in 2D it should also work in 3D. It should just require longer solution times and more effort to control the moving mesh. I presented a similar MEMS switch problem also with fluid between the plates in a recent COMSOL Webinar on Fluid Structure Interaction. Check out this link for details www.comsol.com/video/simulatin...nteraction-comsol-multiphysics .
If your problem is similar to the one I presented then, unfortunately, you need a 3D analysis to predict the effect of air between the plates (squeeze film damping) since most of the air will escape in the direction perpendicular to the 2D plane that captures the solid deformation.
Nagi Elabbasi
Veryst Engineering
If you got the electrostatic force to work in 2D it should also work in 3D. It should just require longer solution times and more effort to control the moving mesh. I presented a similar MEMS switch problem also with fluid between the plates in a recent COMSOL Webinar on Fluid Structure Interaction. Check out this link for details www.comsol.com/video/simulatin...nteraction-comsol-multiphysics .
If your problem is similar to the one I presented then, unfortunately, you need a 3D analysis to predict the effect of air between the plates (squeeze film damping) since most of the air will escape in the direction perpendicular to the 2D plane that captures the solid deformation.
Nagi Elabbasi
Veryst Engineering
