Hello everyone,

I am working on the design of RF cavities for particle accelerators. I would like to use CST to simulate the function of the cooling system (cooling channels) of one of my RF cavities. To describe my problem, I have designed a simple CST model that I want to show here as a picture (on the left as a whole, on the right as a section). In this case, the cavity is a simple pillbox cavity in which (in the large hollow space) an EM field is induced. Due to the EM field, a thermal load arises in the walls of the cavity. This thermal load is to be counteracted by cooling water which is led through the two cooling channels (simple long holes). I would now like to simulate what temperature the cavity reaches at a certain power of the EM field and a certain flow of cooling water.

My question is: How can I do that? I already have a lot of experience with EM solvers (eigenmode etc.) but none with thermal solvers. I feel like I would try a coupled simulations with conjugate heat transfer solver but I am not sure which tool to use to control the water flow and I get different errors on background and EM field import. I understand that the solution to the problem is probably not described in a few sentences and am therefore not sure if the forum is the right place for it. However, I find the 3DS support system very confusing and could not find any examples or documentation describing such a problem.

I would be very happy about your support.

Best
Michael

CST Studio Suite ​​​​​​​