Thermal calculation of the heating unit

The services of an Ansys Fluent specialist are required. You need to perform a thermal calculation of the heating unit in Ansys Fluent. The stand for thermal testing is made up of separate heating units. We are modeling the heating of such a block. The first calculation was successful, and now it is necessary to change the geometry in the same model (this has already been done) and perform the same calculation. I provide the first-calculation files, the new geometry that you just have to insert and calculate. I can't do that because my student license only allows me to use the lowest quality grid and the calculations aren't adequate. It's pretty simple.