Hi, all.
I face a problem in COMSOL: boundary condition assignment for a periodic structure.
In the attached image, a surface acosutic wave (SAW) sensor is shown, wherein four pressure forces (N/m) are applied on the lateral sides of the substrate. Due to the size of the full model, a unit cell model is adopted instead, which is a periodic struture including two IDT electrodes. In the simulation, I know that two Periodic boundary conditions should be assigned to the front/back, and left/right sides, respectively. My question is: can I add the Pressure on the lateral sides as shown in the full model? If can't, is there any solution?
Thank you very much!