Accession Number : AD0282372

Title :   INVESTIGATION OF SPHERICAL SHOCK WAVES IN A SHOCK TUBE

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE FLUID DYNAMICS RESEARCH LAB

Personal Author(s) : TENG,ROBERT NANTU

Report Date : FEB 1962

Pagination or Media Count : 1

Abstract : A shock tube was constructed for investigating spherical shock waves in various atmospheres. The shock tube was carefully calibrated for its performance throughout the designed operating range. Thin-film heat transfer gauges were employed to measure the speed of the incident shock wave. Shadowgraph technique was used to establish the geometry of the spherical shock waves which were produced by either allowing the center portion of the incident shock to enter an orifice and then allowing it to expand into a spherical shock wave at the entrance of the orifice upon reflection from the end or utilizing the high temperature, high enthalpy gas behind the reflected shock wave to expand through a conical nozzle. Attempts were made to measure the speed of the spherical shock waves. (Author)

Descriptors :   *SHOCK TUBES, *SHOCK WAVES, CONICAL NOZZLES, ORIFICES, PHOTOGRAPHIC ANALYSIS, SCHLIEREN PHOTOGRAPHY

Distribution Statement : APPROVED FOR PUBLIC RELEASE