For my bachelor thesis I created an application simulating blood flow using NVidia FleX to evaluate the usage of the underlying Position Based Dynamics algorithm for scientific purposes. I implemented a simple C++/OpenGL application that fills a mesh with particles and uses FleX to simulate the fluid dynamics and records the particles speeds for later evaluation. The recorded values can be displayed directly in the application as seen in the above screenshots.
The complete thesis (written in German) can be downloaded here.