PHOENICS Overview CHAM Technical Report. PHOENICS is a general-purpose software package which uses the techniques of CFD (i.e. Computational Fluid Dynamics) to predict quantitatively: (1) how fluids (air, water, steam, oil, blood, etc) flow in and around: engines, process equipment, buildings, human beings, lakes, river and oceans, and so on; (2) what are the associated changes of temperature and of chemical and physical composition; (3) what are the associated stresses in the immersed or surrounding solids.