CFD Verification of Supersonic Retropropulsion for a Central and Peripheral Configuration
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Author(s)
Cordell, Christopher E., Jr.
Clark, Ian G.
Braun, Robert D.
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Abstract
Supersonic retropropulsion (SRP) is a potential
enabling technology for deceleration of high mass vehicles
at Mars. 12Previous sub-scale testing, performed during the
1960s and 1970s to explore and characterize various
decelerator technologies, focused on SRP configurations
with a single central nozzle located along the axis of a
vehicle; however, some multiple nozzle configurations were
examined. Only one of these tests showed a peripheral
configuration with nozzles outboard of the vehicle
centerline. Recent computational efforts have been initiated
to examine the capability of computational fluid dynamics
(CFD) to capture the complex SRP flow fields. This study
assesses the accuracy of a CFD tool over a range of thrust
conditions for both a central and peripheral configuration.
Included is a discussion of the agreement between the CFD
simulations and available wind tunnel data as well as a
discussion of computational impacts on SRP simulation.
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Date
2011-03
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Text
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Paper
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