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Integrated Simulation Model of Rotor/Propeller Powered Aerobot in Steady Flight

[+] Author Affiliations
Wei Zhao, Zhenguo Wang

National University of Defense Technology, Changsha, China

Paper No. GT2016-56923, pp. V001T01A021; 16 pages
doi:10.1115/GT2016-56923
From:
  • ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition
  • Volume 1: Aircraft Engine; Fans and Blowers; Marine
  • Seoul, South Korea, June 13–17, 2016
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4968-2
  • Copyright © 2016 by ASME

abstract

In this paper, a cost-effective integrated simulation model for rotor/propeller driven aerobot is proposed based on the free wake model. It is helpful to provide aerodynamic input for preliminary control law design, especially for conceptual design at the beginning of a project. Apart from the computational efficient, the model proposed has two more advantages, grid-free and containing the aerodynamic interaction. The governing equation is the Laplacian Equation with the assumption of invisid, incompressible flow. The solver used is inspired by the well-known Pseudo-Implicit Predictor Corrector (PIPC) for the rotors. Two validation cases are carried out. Firstly, the simulation results for the Harrington coaxial rotors and the Hamilton coaxial propellers show good agreement with the experiment. The simulation of a 45° swept-back wing also goes well with the corresponding experiment. Before the end, a simulation for a transition state with 0° tilt angle for the Eagle Eye is used to show the aerodynamic interaction, which has more influence on the wings.

Copyright © 2016 by ASME

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