Accession Number : AD0635305

Title :   DESIGN, CONSTRUCTION, AND CALIBRATION OF THE FJSRL 17-INCH LOW DENSITY SHOCK TUBE.

Descriptive Note : Scientific rept.

Corporate Author : FRANK J SEILER RESEARCH LAB AIR FORCE ACADEMY COLO

Personal Author(s) : Stebbins, Charles F. ; Johnson,Douglas S.

Report Date : MAY 1966

Pagination or Media Count : 46

Abstract : The tube is to be used for studying real gas phenomena in a real shock tube. The FJSRL shock tube can be fired at test pressures ranging from 1/2 micron Hg up to atmospheric pressure, with multi-test and multi-driver gas capabilities. Diaphragm pressure ratios range between 100,000 and 10 to the 8th power giving a practical range of Mach numbers, in argon, of 2 <Ms <10. The Mach number repeatibility of the tube is to within approximately 0.5%. The shock wave was shown to decelerate only 0.1%/ft near the test section endwall for the full tube operating range, guaranteeing an essentially constant Mach number over models or instruments of reasonable length. The tube has excellent integrity as a vacuum vessel with a leak rate of < .01 micron/hour. (Author)

Descriptors :   (*SHOCK TUBES, PERFORMANCE(ENGINEERING)), GASES, RAREFIED GAS DYNAMICS, SHOCK WAVES, DECELERATION, DESIGN, CONSTRUCTION, CALIBRATION, ARGON

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE