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Validation of a Mid-Fidelity Approach for Aircraft Stability and Control CharacterizationThis paper describes an efficient computational approach for aircraft aerodynamic model development intended for use in flight dynamics simulations. A commercial surface-vorticity flow solver called FlightStream is employed to predict performance, stability, and control characteristics for a NASA subscale electric vertical takeoff and landing aircraft in its isolated-airframe configuration. A framework is described to rapidly convert OpenVSP geometry into a form compatible with the FlightStream software. FlightStream predictions for the variation of aerodynamic force and moment coefficients with airflow angles and control surface deflection angles are compared to static wind-tunnel data to illustrate the process and assess the accuracy of FlightStream solutions. The results and approach presented in this paper are encouraging for use in rapid aerodynamic modeling and flight dynamics simulation development early in the aircraft design process.
Document ID
20230006813
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Benjamin M Simmons
(Langley Research Center Hampton, Virginia, United States)
Steven C Geuther
(Langley Research Center Hampton, Virginia, United States)
Vivek Ahuja
(Research in Flight)
Date Acquired
May 3, 2023
Subject Category
Aerodynamics
Aircraft Stability and Control
Aircraft Design, Testing and Performance
Meeting Information
Meeting: AIAA AVIATION 2023 Forum
Location: San Diego, CA
Country: US
Start Date: June 12, 2023
End Date: June 16, 2023
Sponsors: American Institute of Aeronautics and Astronautics
Funding Number(s)
WBS: 109492.02.07.07.05
WBS: 109492.02.07.07.07
WBS: 533127.02.35.07.01
CONTRACT_GRANT: NNX17CL12C
CONTRACT_GRANT: 80LARC19C0013
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
NASA Peer Committee
Keywords
aerodynamic modeling
wind tunnel testing
aerodynamic prediction methods
FlightStream
RAVEN
Advanced Air Mobility
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