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Computations of Torque-Balanced Coaxial Rotor FlowsInteractional aerodynamics has been studied for counter-rotating coaxial rotors in hover. The effects of torque balancing on the performance of coaxial-rotor systems have been investigated. The three-dimensional unsteady Navier-Stokes equations are solved on overset grids using high-order accurate schemes, dual-time stepping, and a hybrid turbulence model. Computational results for an experimental model are compared to available data. The results for a coaxial quadcopter vehicle with and without torque balancing are discussed. Understanding interactions in coaxial-rotor flows would help improve the design of next-generation autonomous drones.
Document ID
20170000654
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Yoon, Seokkwan (NASA Ames Research Center Moffett Field, CA United States)
Chan, William M. (NASA Ames Research Center Moffett Field, CA United States)
Pulliam, Thomas H. (NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
January 20, 2017
Publication Date
January 9, 2017
Subject Category
Aerodynamics
Aircraft Design, Testing And Performance
Report/Patent Number
ARC-E-DAA-TN36359
Meeting Information
Meeting: AIAA SCITECH Forum 2017
Location: Grapevine, TX
Country: United States
Start Date: January 9, 2013
End Date: January 13, 2013
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Torque
Coaxial
Rotor

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