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ANALYSIS FOR AERODYNAMICS OF THE SIMPLIFIED MODEL OF A COMMERCIAL AIRPLANE CRUISING AT TRANSONIC SPEED

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Author(s): KIM YANGKYUN | KIM SUNGCHO

Journal: Journal of Engineering Science and Technology
ISSN 1823-4690

Volume: 5;
Issue: 4;
Start page: 426;
Date: 2010;
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Keywords: Aerodynamic coefficients | Wingtip vortex | Winglet | Visualization

ABSTRACT
This paper describes the computational analysis and visualization of flow around the model of a commercial airplane, Boeing 747-400. The geometry was realized through reverse engineering technique based on the photo scanning measurement. The steady three-dimensional viscous compressible governing equations were solved in the unstructured grid system. The basic conditions for computation were chosen as the same to those of Boeing 747-400’s cruising state. The high Reynolds turbulence models are tried. The angle of attack is varied to investigate the effect of the flight conditions to the aerodynamic performance. And flow and aerodynamic characteristics due to the existence of winglet were compared.
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