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Aerodynamic Performance of Supersonic Parachutes Behind Slender BodiesNASA's ASPIRE (Advanced Supersonic Parachute Inflation Research Experiments) project was launched to investigate the supersonic deployment, inflation and aerodynamics of full-scale disk-gap-band (DGB) parachutes. Three flight tests (October 2017, March 2018 and July 2018) deployed and examined parachutes meant for the upcoming "Mars 2020" mission. Mars-relevant conditions were achieved by performing the tests at high altitudes over Earth on a sounding rocket platform, with the parachute deploying behind a slender body (roughly 1/6-th the diameter of the capsule that will use this parachute for descent at Mars). All three tests were successful and delivered valuable data and imagery on parachute deployment and performance. CFD simulations were used in designing the flight test, interpreting the flight data, and extrapolating the results obtained during the flight test to predict parachute behavior at Mars behind a blunt capsule. This presentation will provide a brief overview of the test program and flight test data, with emphasis on differences in parachute performance due to the leading body geometry.
Document ID
20190028733
Acquisition Source
Ames Research Center
Document Type
Abstract
Authors
Muppidi, Suman
(Analytical Mechanics Associates, Inc. Moffett Field, CA, United States)
O'Farrell, Clara
(Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Van Norman, John
(Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Clark, Ian
(Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Date Acquired
August 6, 2019
Publication Date
August 1, 2019
Subject Category
Aerodynamics
Report/Patent Number
ARC-E-DAA-TN71648
Meeting Information
Meeting: Annual Meeting of the APS Division of Fluid Dynamics
Location: Seattle, WA
Country: United States
Start Date: November 23, 2019
End Date: November 26, 2019
Sponsors: American Physical Society
Funding Number(s)
CONTRACT_GRANT: 80LARC17C0003
CONTRACT_GRANT: NNA15BB15C
Distribution Limits
Public
Copyright
Public Use Permitted.
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