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:

1968-03-01

Pagination or Media Count:

162.0

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