Accession Number : AD0849592

Title :   Velocity Profile and Mass Flow Measurements in a Spinning, Cold-flow Rocket Motor.

Descriptive Note : Final rept. Jul 64-Jul 68,

Corporate Author : PURDUE UNIV LAFAYETTE IN JET PROPULSION CENTER

Personal Author(s) : Stanley, William M. ; L'Ecuyer, M. R.

Report Date : AUG 1968

Pagination or Media Count : 68

Abstract : An experimental investigation was conducted to examine the flow field within the chamber of a spinning, cold flow rocket motor and to determine the effects of the interaction of this swirling flow with the decreasing area of a converging nozzle. The investigation was divided into two phases: (a) the measurement of the static pressure and velocity profiles within the chamber of the cold flow motor with a five-port impact tube probe and (b) the measurement of the effect of the swirling flow-nozzle interaction on the mass flow rate through the nozzle. The static pressure and velocity profiles were measured at two axial locations within the chamber of a simulated end-burning rocket motor for rotational speeds of 1000, 3000 and 5000 rpm. The measured axial and tangential velocity profiles ere compared with the predicted profiles, which were based upon a solid-body vortex with a uniform axial velocity. (Author)

Descriptors :   *INTERIOR BALLISTICS), (*SOLID PROPELLANT ROCKET ENGINES, (*COMBUSTION CHAMBERS, COLD FLOW), FLOW FIELDS, INTERACTIONS, VORTICES, PRESSURE, VELOCITY, NOZZLE GAS FLOW, ROCKET NOZZLES, MASS TRANSFER, VARIABLE AREA NOZZLES.

Subject Categories : Fluid Mechanics
      Solid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE