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- Title
A Finite State DynamicWake Model Enhanced with Vortex Particle Method–Derived Modeling Parameters for Coaxial Rotor Simulation and Analysis.
- Authors
Jinggen Zhao; Chengjian He
- Abstract
This paper describes a finite state dynamic rotor wake model that addresses the complex aerodynamic interference inherent in coaxial rotor configurations in support of advanced vertical lift aircraft simulation and analysis. The present finite state rotor dynamic wake solution was developed by enhancing Peters–He's finite state dynamic wake modelwith a first-principle–based viscous vortex particle method (VPM). To account for the mutual aerodynamic interference between multiple rotors, the finite state dynamic wake model was enhanced with several essential modeling parameters that account for important physical phenomena. These modeling parameters were determined based on high-fidelity VPM simulations. The enhanced finite state rotor wake model thus developed provides a state-space real-time modeling capability for advanced coaxial rotor configurations. To validate the enhanced finite state model, simulation results for rotor performance, rotor wake dynamics, and flow field of different coaxial rotor configurations in both hover and forward flight conditions were compared with the corresponding VPM predictions and available measured data.
- Subjects
FINITE state machines; PARTICLE methods (Numerical analysis); ROTORS (Helicopters); FLOW velocity; CONTROLLABILITY in systems engineering
- Publication
Journal of the American Helicopter Society, 2016, Vol 61, Issue 2, p022011-1
- ISSN
0002-8711
- Publication type
Article
- DOI
10.4050/JAHS.61.022011