SHOCK-WAVE CURVATURE AT LOW INITIAL PRESSURE

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Physics of Fluids (U.S.)

DOI:https://doi.org/10.1063/1.1706411· OSTI ID:4029847

Duff, R E; Young, III, J L

The shape of the primary shock wave in a shock tube has been measured by recording the time of arrival of the shock in argon at an array of piezoelectric detectors located along a diameter of a 28.6-mm ID shock tube operated at an initial expansion chamber pressure of 0.34 mm Hg. The following conclusions were drawn from the results: (1) Shock-wave tilt was negligibly small under the conditions of these experiments (2) shock-wave curvature is independent of shock strength for shock Mach numbers from 1.8 to 6.3; (3) the shock-front shape is nearly spherical; (4) the axial extent or the bulge of the curved shock is approximately 1 mm. The axial extent of a shock in argon was also messured over the range of initial pressure from 0.1 to 20 mm Hg. It varies approximately as the inverse square root of the initial pressure. (auth)

• Research Organization: Los Alamos Scientific Lab., N. Mex.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-024137
• OSTI ID: 4029847
• Journal Information: Physics of Fluids (U.S.), Journal Name: Physics of Fluids (U.S.) Vol. Vol: 4; ISSN PFLDA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ARGON
CONFIGURATION
DETECTION
MEASURED VALUES
PHYSICS
PIEZOELECTRICITY
PLANNING
PRESSURE
RECORDING SYSTEMS
SHOCK WAVES
VELOCITY