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- W4317584265 abstract "Ring-slot parachutes are used in many different aerodynamic decelerator system applications within the five phases of traditional airdrop most notably extraction and free-fall descent. Recently, because of their stability characteristics, they have been adopted for landing deceleration parachutes. The large wake associated with the extraction and landing applications result in a drag coefficient reduction on the order of 10% when compared to nominal descent use cases, such that optimizing or enhancing freestream aerodynamic characteristics may be required. This computational research effort explores the effect of varying geometric porosity on incoming flow field profiles and addresses the resultant aerodynamic response of new rigid ring-slot parachute models. High-fidelity computational fluid dynamics (CFD) simulations are conducted using the DoD High Performance Computing Modernization Program, Computational Research and Engineering Acquisition Tools and Environment-Air Vehicles (HPCMP CREATE^TM-AV) Kestrel simulation suite for 28 ���� nominal diameter ���� ring-slot parachute canopy models. In addition to documenting aerodynamic force data for four new ring-slot models, static and dynamic stability characteristics are presented for the models. These data are compared against baseline results for a standard ring-slot porosity model, and the paper follows closely the lessons learned and best practices documented in the papers of Bedwell et al. [1], Bergeron et al. [2], and Ghoreyshi et al. [3]." @default.
- W4317584265 created "2023-01-21" @default.
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- W4317584265 date "2023-01-19" @default.
- W4317584265 modified "2023-10-02" @default.
- W4317584265 title "Computational Study of Ring-slot Parachute Dynamics in Turbulent Flow Fields" @default.
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- W4317584265 doi "https://doi.org/10.2514/6.2023-0640" @default.
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