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Manned Mars aerobrake vehicle design issuesThe paper examines the preliminary definition of the stagnation region aerothermodynamic environment, the effect of convective/radiative effect of trim angle-of-attack mispredictions, packaging issues, and the implications of wake flow for vehicles not having an aft aeroshell. The implications of each of these factors for a Mars aerobrake configuration with a L/D in the range of 0.3-0.5 is evaluated. It is shown that packaging and wake flow requirements have a significant impact on the final design of a low L/D aerobrake. Due to the large proportion of carbonaceous species in the Martian atmosphere, radiative heating is seen to play a more dominant role in the stagnation region aerothermodynamics than for an equivalent earth entry. It is concluded that this radiation amplification is an additional reason to consider a multiple aerobrake system.
Document ID
19910029243
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Freeman, Delma C., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Powell, Richard W.
(NASA Langley Research Center Hampton, VA, United States)
Braun, Robert D.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1990
Subject Category
Launch Vehicles And Space Vehicles
Report/Patent Number
IAF PAPER 90-197
Accession Number
91A13866
Distribution Limits
Public
Copyright
Other

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