Dear friends,
I am designing a acoustic wave propagation inside a oil fill transformer using COMSOL Multiphysics software. Here, I am considering an analytical wave equation as a acoustic wave which is shown in the fig.1. In the oil fill transformer model one flow point source is consider from this point I want to generate acoustic wave using analytical wave equation. But while calling this analytical wave equation to flow point source show the error. If anybody have some knowledge about this please help me out from this error.
For understanding the question please find the fig1 and fig2. which I have attached in the below.