DYNAMICS OF TWO-PHASE FLOW IN ROCKET NOZZLES

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)

Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1962
Accession Number
AD0284663

Entities

People

  • B.g. Wrenn
  • R. Dunlap

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Creep
  • Design Criteria
  • Flow
  • Gas Turbine Nozzles
  • Nozzles
  • Particle Size
  • Particle Trajectories
  • Particles
  • Phase
  • Radial Velocity
  • Rocket Nozzles
  • Solid Phases
  • Solid Propellants
  • Two Dimensional
  • Two Phase Flow

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Fluid Dynamics.
  • Rocket Propulsion.