Accession Number : AD0672476

Title :   THE PROPAGATION OF BLAST WAVES INTO CHAMBERS.

Descriptive Note : Memorandum rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Melichar,J. F.

Report Date : MAR 1968

Pagination or Media Count : 162

Abstract : The transmission of a blast environment from the exterior of a chamber into the interior is discussed in terms of the aerodynamic mechanisms of the transmission process. The transmission process was divided into these parts: (1) the entrance and expansion of the incident shock wave into and through the chamber; (2) the flow into the chamber developed by the pressure differential across any openings to the exterior and (3) the filling of the chamber by the inflow. A computerized method for predicting the pressure-time profile of the filling process is presented. The methods described were applied to a hypothetical structure and the results are applied to evaluating the methods and comments presented in the discussion. (Author)

Descriptors :   (*BLAST, SHOCK WAVES), (*SHELTERS, EXPLOSION EFFECTS), PENETRATION, EXPLOSION EFFECTS, JET MIXING FLOW, SPARK SHADOWGRAPH PHOTOGRAPHY, ORIFICES, STRUCTURAL PROPERTIES, COMPUTER PROGRAMMING, TABLES(DATA), MATHEMATICAL MODELS, FLOW FIELDS, PRESSURE, INTERACTIONS, TWO DIMENSIONAL FLOW

Subject Categories : Structural Engineering and Building Technology
      Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE