Accession Number : AD0275325

Title :   TASK R

Corporate Author : JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Report Date : 31 MAR 1962

Pagination or Media Count : 1

Abstract : High temperature kinetics in laminar flames; Work continued on checking the reliability of the scavenger probe sampling technique for measuring O-atom concentration. Comparisons were made between this method and the NO2 titration method. Thermal conductivity of gases; Improvements in the mixing and vaporizing accessories to the line source apparatus have helped to alleviate the flow fluctuations previously noted in the H2O-O2 study. Data are given for results on pure O2 and on a mixture of 25 mole % H2O - 75 mole % O2 over the temperature range 400 - 1100 K. Rocket nozzle fluid dynamics; Boundary layer measurement at the 2-in. station downstream of the throat were initiated. Results on four tests of throat heat transfer rates are given and compared with theory. Infrared absorption results on CO2 and CO in the 12.5 degree nozzle are presented. Rocket nozzle chemical kinetics; A new series of calculations of non-equilibrium flow through a supersonic expansion section has been undertaken for H2-air combustion products. (Author)

Descriptors :   *COMBUSTION CHAMBER GASES, *FLAMES, *GAS FLOW, *HEAT TRANSFER, *SOLID ROCKET PROPELLANTS, BOUNDARY LAYER, CHEMICAL REACTIONS, COMBUSTION, EXHAUST FLAMES, EXHAUST GASES, FLUID MECHANICS, HIGH TEMPERATURE, LAMINAR BOUNDARY LAYER, REACTION KINETICS, ROCKET NOZZLES, THERMAL CONDUCTIVITY.

Distribution Statement : APPROVED FOR PUBLIC RELEASE