Accession Number : AD0656744

Title :   SHOCK WAVE TRANSMISSION THROUGH A LARGE RESTRICTION IN A CONSTANT AREA DUCT.

Descriptive Note : Memorandum rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Bertrand,Brian P.

Report Date : JUN 1967

Pagination or Media Count : 41

Abstract : Plane shock waves were reflected by bulkheads in a constant area, circular cross-section, shock tube. Each bulkhead contained a centered circular orifice; tube-to-orifice area ratios were 96, 50.5 and 23.3. Both input- and transmitted-shock pressure histories were measured at several distances from the bulkhead, and the results are compared with theory. Pressure measurements were also made of the shock waves transmitted through orifices in two bulkheads placed in series. (Author)

Descriptors :   (*SHOCK WAVES, WAVE PROPAGATION), (*DUCTS, WAVE PROPAGATION), PRESSURE, ORIFICES, VENTILATION DUCTS, SHOCK TUBES, ATTENUATION, UNDERGROUND STRUCTURES

Subject Categories : Aerodynamics
      Structural Engineering and Building Technology
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE