Study of Power Influences to the Wing-Mounted Civil Aircraft Aerodynamic Characteristics

Numerical simulations of the power influences to the wing-mounted civil aircraft aerodynamic characteristics are presented. Three-dimensional time-dependent compressible Reynolds-averaged Navier–Stokes equations were solved. The point-to-point patched multiblock technology was used to generate the h...

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Bibliographic Details
Published in:Journal of aircraft 2014-03, Vol.51 (2), p.629-636
Main Authors: Zhaoguang, Tan, Yingchun, Chen, Jiangtao, Si
Format: Article
Language:English
Subjects:
Aerodynamic characteristics
Aerodynamics
Aerospace engineering
Aerospace engines
Aircraft
Aircraft configurations
Boundary conditions
Compressibility
Computational fluid dynamics
Computer simulation
Finite element method
High lift
Mathematical analysis
Nacelles
Navier-Stokes equations
Numerical methods
Simulation
Three dimensional
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Summary:Numerical simulations of the power influences to the wing-mounted civil aircraft aerodynamic characteristics are presented. Three-dimensional time-dependent compressible Reynolds-averaged Navier–Stokes equations were solved. The point-to-point patched multiblock technology was used to generate the high-quality grid. For simulating the engine power effects, the jet inlet and jet exit boundary conditions were properly specified. The simulation results and their comparisons with the experimental data are presented for two test cases: an isolated engine and the DLR F6 wing–body/pylon/nacelle combination. The simulated and experimental results are quite similar, indicating the mesh quality and numerical methods are adequate in this study. Finally, flowfields around a realistic wing-mounted aircraft cruise and high-lift configuration were simulated. The numerical results indicate that the power changes the local flowfield, therefore causing certain changes to the aerodynamic characteristics.
ISSN:0021-8669
1533-3868
DOI:10.2514/1.C032356