Aerodynamic Effect on the Flow Field under the Wing with Varying Aspect Ratio

Title & Authors
Aerodynamic Effect on the Flow Field under the Wing with Varying Aspect Ratio
Cho, Cheolyoung; Park, Jongho;

Abstract
In this paper, aerodynamic effects on the flow field under the wing with varying aspect ratio were investigated by measuring pressures on the lower surface of wing and analysing velocity components using Particle Image Velocimetry at Reynolds numbers of $\small{1.384{\times}10^5}$ and $\small{2.306{\times}10^5}$. In case of aspect ratio 4.8 which keeps the wing tip at a distance of 80% chord length from the pylon, the vortex from the wing tip influenced the flow field under the wing by reducing static pressures on the lower surface and increasing the velocity in proximity of the wing tip. Throughout the results, it is observed that aerodynamic effects of wing tip on the flow field around pylon under wing become insignificant as the aspect ratio increases.
Keywords
Partial Representation;Store Separation;Pylon;Aspect Ratio;PIV;
Language
Korean
Cited by
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