Abstract
Supercritical-fluids simulator (SFS) developed by our group is coupled with a particle formation model of the rapid expansion of supercritical solution (RESS) process. In SFS, a numerical method based on the preconditioning method and PROPATH is used for evaluating accurate thermophysical properties. In this paper, the particle formation of Naphthalene in the supersonic flow is calculated considering condensation of CO_2. The results indicates that the region of particle formation is different from the region of CO_2 condensation.