AIR-BLAST-INDUCED AERODYNAMIC EFFECTS IN BLAST-SLANTED BASEMENT SHELTERS.
STANFORD RESEARCH INST MENLO PARK CALIF
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The report contains recommendations for the location, configuration, and orientation of entrances to blast-slanted basement shelters. These recommendations are to be used in conjunction with blast-slanted shelter design to limit those air-blast-phenomena most likely to cause personnel casualties. It was established that translation of the shelterees due to air-blast-induced flows could be a major cause of human damage blast overpressure would not be a primary hazard. Curves for the inflow velocity into the chamber as a function of pressure on the exterior of the chamber were presented. Wave motions surrounding the entry and exit of a shock wave in a tunnel-type entry were summarized. A two-dimensional hydrodynamic code was used to evaluate a series of chambers of different geometries. The computer output from the numerical simulation is presented for the full range of cases to give the architect and engineer an intuitive feel for the flow environment within shelters. Author
- Structural Engineering and Building Technology