NDLI: Assessment of the reconstructed aerodynamics of the mars science laboratory entry vehicle

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Assessment of the reconstructed aerodynamics of the mars science laboratory entry vehicle

Content Provider	NASA Technical Reports Server (NTRS)
Author	Karlgaard, Christopher D. Schoenenberger, Mark Dyakonov, Artem A. Way, David W. Van Norman, John W. Kutty, Prasad
Copyright Year	2013
Description	On August 5, 2012, the Mars Science Laboratory entry vehicle successfully entered Mars atmosphere, flying a guided entry until parachute deploy. The Curiosity rover landed safely in Gale crater upon completion of the Entry Descent and Landing sequence. This paper compares the aerodynamics of the entry capsule extracted from onboard flight data, including Inertial Measurement Unit (IMU) accelerometer and rate gyro information, and heatshield surface pressure measurements. From the onboard data, static force and moment data has been extracted. This data is compared to preflight predictions. The information collected by MSL represents the most complete set of information collected during Mars entry to date. It allows the separation of aerodynamic performance from atmospheric conditions. The comparisons show the MSL aerodynamic characteristics have been identified and resolved to an accuracy better than the aerodynamic database uncertainties used in preflight simulations. A number of small anomalies have been identified and are discussed. This data will help revise aerodynamic databases for future missions and will guide computational fluid dynamics (CFD) development to improved prediction codes.
File Size	2159915
Page Count	20
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20130010088
Archival Resource Key	ark:/13960/t0ns5rd9b
Language	English
Publisher Date	2013-02-10
Access Restriction	Open
Subject Keyword	Aerodynamics Computational Fluid Dynamics Simulation Parachutes Mars Science Laboratory Heat Shielding Mars Atmosphere Pressure Measurement Aerodynamic Characteristics Atmospheric Entry Descent Anomalies Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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