Kevin O'Connor has dropped word to FrostyTech about his handy little program for running Computational Fluid Dynamics (CFD) evaluations in 3-space.... and for quite a lot less than Flomerics Flotherm goes for. Called Heat Sink Designer, the $375USD ($275 on sale now) software package offer engineers and designers and really anyone straightforward means of creating and optimizing CFD heatsink models. A trial version is available at this link.
"HSD was created by a thermal consultant and CFD modeler who wanted a quick and easy way to evaluate heat sinks for feasibility and tradeoff studies. Since then, the program has been completely re-written. A great deal of effort has been put into making it easy to use for anyone with a desire to evaluate heat sinks: mechanical designers and engineers, PCB layout designers, electrical engineers and technicians, and yes, even their managers. HSD is continually being revised and improved and we welcome any suggestions to make the program as useful as possible to you."