Free CFD is an open source CFD code written in C++. It has an implicit density based solver for unstructured grids in 3D. The project is fairly new (Feb 2009) and still lacks some important functionality, like turbulence modeling. It looks very promising though and it will be very interesting to see how it develops. If you think that OpenFOAM is too complex and too large, Free CFD can be an interesting alternative, especially of you want a density based solver suitable for high-speed flows.
This does'nt help. A chinese web can't read by me.