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Influence of Control Jets on Flush Air-data SensorsComputations are performed to investigate the effect of rocket control motors on flush air-data sensor systems. Such sensors are critical for the control of space vehicles during launch and re-entry, but are prone to interference from rocket motors, hypersonic-flow effects, etc. Computational analyses provide a means for studying these interference effects and exploring opportunities for mitigating them, either through design techniques or through appropriate processing of the sensor outputs. In the present work, the influence of rocket control motors on the nosecone flush air-data sensors of a launch-abort vehicle is studied. Particular attention is paid to the differential effect of various control-jet combinations on surface pressures. The relative effectiveness of inviscid, viscous, turbulent and two-phase-flow approximations in addressing this problem is also investigated.
Document ID
20090025454
Acquisition Source
Armstrong Flight Research Center
Document Type
Conference Paper
Authors
Woodruff, Stephen
(NASA Dryden Flight Research Center Edwards, CA, United States)
Date Acquired
August 24, 2013
Publication Date
June 22, 2009
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
DFRC-929
Meeting Information
Meeting: 39th AIAA Fluid Dynamics Conference
Location: San Antonio, Tx
Country: United States
Start Date: June 22, 2009
End Date: June 25, 2009
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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