Dear Navya
I was able to solve the issue, the problem is that if you make changes to half model , then you need to make changes to whole model. The other side of the symmetry ( which you dont see becasue of the boundary conditions) is totally different compare to what I was simulating and thats why there was a shift in waveform, So i made changes to the whole model without putting any symmetries and then split it into 1/4th to get the result as that of the full model.
Thank you very much for your reply.
Kind Regards
Sana
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