There are two geometry editors available in ANSYS: DesignModeler and SpaceClaim. To make a bowl surface, draw an arc with the center on a coordinate axis, the start point on that axis, and make the end point at some distance from the axis. Revolve that arc around the axis to make a spherical surface. In SpaceClaim, that is done using the Pull tool. In DesignModeler, it is Create Revolve, select the sketch that has the arc in it and adjust the details to get a thin surface.
ANSYS has a wonderful ability to automate parametric testing. Below is one of my videos from a couple of years ago that shows how to make parameters in SpaceClaim. DesignModeler can also create parameters and is often more reliable because it is history-based geometry, while SpaceClaim is not. I recommend you work in DesignModeler.
If you lay out a table of each design parameter, and the range over which you want to study, that will make creating a parametric geometry model easier.
What is the radius of curvature of the bowl? What is the diameter of the film circle? What other shapes of film do you want besides a circle?
What version of ANSYS do you have? Attached is an ANSYS 2020 R2 archive with a parametric bowl done in DesignModeler. There are at least two choices for parameterizing the bowl, the horizontal distance to the edge of the bowl or the vertical distance. That is an example of the kind of planning that should go into the table. Which one do you want.