Theoretical analysis of wake-induced parachute collapse
During recent drop tests of a prototype weapon system, the parachute collapsed soon after it became fully inflated. The magnitude and duration of the collapses were severe enough to degrade parachute performance drastically. A computer-assisted analysis is presented which models parachute inflation, forebody and parachute wake generation, and interaction between the wake and the inflating or collapsing parachute. Comparison of the analysis results with full-scale drop test results shows good agreement for two parachute sizes; both parachutes were tested with and without permanent reefing. Computer-generated graphics (black and white drawings, color slides, and color movies) show the forebody and inflating parachute, the wake, and the wake and parachute interaction.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5900181
- Report Number(s):
- SAND-81-0546C; CONF-811002-5; ON: DE82001318
- Resource Relation:
- Conference: 7. AIAA aerodynamic decelerator and balloon technology conference, San Diego, CA, USA, 21 Oct 1981
- Country of Publication:
- United States
- Language:
- English
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