Hi everyone, I want to simulate and measure the RVS (Receiving Voltage Sensitivity) of a spherical piezoelectric hydrophone. I created a spherical shell and a water domain covering that shell. I measured the RVS under no pressure condition by giving 1e-6 Pa incident pressure field to the system with frequency sweep under frequency domain. But I have to measure it under different ambient pressure such as 1e5 Pa, 1e6 Pa etc.
In order to do it I created a study with two different steps. One of them is stationary and the other one is frequency domain. I applied a boundary load to the piezo sphere in order to simulate the ambient pressure under stationary solution step. After that, I swept the frequency to get RVS results of it. However, the results are not satisfying. I tried several approaches for pressure, such as initial conditions etc. I couldn't find how to measure the RVS of the transducer. I added the physics and solutions that I used for the RVS measurements with the images given below.
How can I simulate the different pressure environments? Do you have an idea or recommendation about it ? Thanks.