I have worked with similar simulations before, and I also have a very strong academic experience in Astrophysics. I can solve the question attached, but you should provide the software that you need the simulation to be done with. It would probably be based on numerical solution, or may be finite analysis; whatever, the question can not be solved with out you providing the name (at least) of the software.
Also, I have just finished a complex research project in Physics involving some software and data analysis after data acquisition..and I got a 5 star review, you can check my profile.
Don't miss the enthusiasm of a skilled starter ;)