FloTHERM vs. SolidWorks Flow Simulation

Hello

Does anybody know of the software flotherm and which is better between that and solidworks flow simulation for different applications?

basically i want to use solidworks flow simulation for my current project instead of flowtherm but need to justify it

I have to model thermal transfer from a power system not its surroundings and heat sinks

Many thanks anyone

Chris

SolidworksFlow Simulation