Daat Research Corp. was founded in 1992 to develop and market innovative engineering applications for modeling fluid flow and heat transfer. Our flagship product, Coolit, built on decades of our thermal engineering experience, has become the CFD software of choice for electronics cooling applications.
I have been using Coolit for a few years. It is an exceptionally powerful and well-designed product consistently predicting results within ~5% of actual. Highly recommended. Compared to its main competitors Icepak and Flotherm it is much faster and easier to use. And it costs less. Highly recommended.