Pressure/Temperature Decay in an Explosion Containment Room,
SOUTHWEST RESEARCH INST SAN ANTONIO TX
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The cooldown following an HE explosion in an explosion containment room was investigated. The post explosion temperatepressure environment was analyzed. The three-part study was comprised of experimental modeling, heat transfer analysis, and numerical modeling of cooldown with gas leakage. Two phases of cooldown were observed. Radiant heat flow and explosively driven, forced convection in the first fraction of a second result in a rapid temperature and pressure decay. At later times, natural convection dominates and the pressure decays exponentially. The transient pressuretemperature decay was modeled based on the natural convection in the enclosure evaluated at a time-weighted temperature. Predicted values compared closely to experimental data. A numerical simulataion was developed to determine the impact of leakage on the pressure and temperature inside the enclosure during cooldown.
- Structural Engineering and Building Technology
- Chemical, Biological and Radiological Warfare