Accession Number : AD0428498


Title :   DETERMINATION OF INDUCTION TIMES IN ONE-DIMENSIONAL DETONATIONS,


Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH


Personal Author(s) : Mullaney,G J ; Arave,R


Report Date : Dec 1963


Pagination or Media Count : 24


Abstract : One-dimensional detonations are established in a converging-diverging nozzle at low initial pressures. Pulsed light schlieren photography displays the shock wave and the density gradient which signals the beginning of rapid chemical reaction after the induction period. Induction time ( ) has been studied over the ranges 880 T 1600 K, 15 p1 40 mmHg and 2.5 21 microsec for the hydrogen-oxygen reaction. Data are presented mostly for 2H2 + O2 + 3.76N2, and 2H2 + O2 + 4A and compared with that obtained theoretically in other kinetic studies. Schlieren photographs taken when a weak shock passes over the combustible mixture show some of the features of detonation formation. (Author)


Descriptors :   SHOCK WAVES , CONVERGENT DIVERGENT NOZZLES , ONE DIMENSIONAL FLOW , SHOCK TUBES , COMBUSTION , CHEMICAL REACTIONS , SCHLIEREN PHOTOGRAPHY , THERMODYNAMICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE