Accession Number : AD0284663

Title :   DYNAMICS OF TWO-PHASE FLOW IN ROCKET NOZZLES

Corporate Author : UNITED TECHNOLOGY CENTER SUNNYVALE CALIF

Personal Author(s) : WRENN,B.G. ; DUNLAP,R.

Report Date : 30 AUG 1962

Pagination or Media Count : 1

Abstract : An experimental and theoretical investigation is being conducted of the axial and radial velocity lag of a dispersed solid phase in accelerating gases. The program objective is to generate basic information and nozzle design criteria for the flow dynamics of the two-phase flow resulting from the combustion of metalized solid propellants. The correction of the particle size of molecularsieve powder used in calculation of the cold-flow differential nozzle flow has resulted in improved agreement of theory and experiment. Experimental studies of two-dimensional particle trajectories in nozzles (0.250 inch throat diameter), covering a large variety of conditions, have been performed. A theory to predict particle trajectories in the subsonic portion of nozzles has been developed and compared to experimental results. A preliminary study of the effect of particle radial velocity lag on characteristic velocity has been performed. (Author)

Descriptors :   *EXHAUST GASES, *ROCKET NOZZLES, AERODYNAMIC CHARACTERISTICS, DRAG, DYNAMICS, EQUATIONS, FUEL ADDITIVES, GAS FLOW, MATHEMATICAL ANALYSIS, METALS, MODEL TESTS, PARTICLE TRAJECTORIES, PARTICLES, SOLID ROCKET PROPELLANTS, THEORY, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE