Accession Number : ADP000240

Title :   Measurement and Calculation of Shock Attenuation in a Channel with Perforated Walls,

Corporate Author : BOCHUM UNIV (GERMANY F R) INST FUER THERMO- UND FLUIDDYNAMIK

Personal Author(s) : Merzkirch,Wolfgang ; Erdmann,Walter

Report Date : JUL 1981

Pagination or Media Count : 6

Abstract : The velocity of a shock wave generated in an air/air shock tube with perforated walls is measured by means of an optical Doppler schlieren technique. The attenuation of the shock is measured for perforation ratios varying between 0.1 and 0.5 and over a length of about 40 channel heights. Various numerical models are used to determine the shock attenuation, and these results are compared with the experimental data.

Descriptors :   *Shock waves, *Shock tubes, *Attenuation, *Measurement, Schlieren photography, Doppler systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE