One-dimensional model for coaxial flowing streams with condensation

An analytical model was developed to identify the basic phenomena present in the high temperature flow (2700 K) of two gaseous coaxial streams. The one-dimensional model potentially has application for design of hardware and test conditions for conducting a laser isotope separation feasibility experiment. The processes of interest are those of coupled flow dynamics, liquid condensation of metal vapors, and gaseous diffusion. The stream tubes may initially consist of pure or combinations of an inert carrier - nitrogen, or metal vapor - uranium. A computer code, LISP (Laser Isotope Separation Program), follows from the model. Output from the LISP code is presented in three test cases. They involved stream differences in velocity up to 90,000 mm/sec and in temperatures of 1100 K. The rate controlling process for the cases cited was found to be diffusion. However, condensation was present.