While we use data of 3D wings for airplane design, experiments result in graphics of 2D wings. The difference leakage from high pressure region below the wing to low pressure region on the top through the wing edge. Flow leakage, colled as tip vortex, reduces efficiency of 3D wings in producing lift force at a certain angle of attack. How great the reduction of lift force occured, will be evaluated by conducting wind tunnel experiment. This paper will discuss the difference between 2D wing and 3D wing from experiment outcomes. Objectives of experiment, problem definition, basic thoery of this subject will be given first, then experiment procedure and data analysis will be explained. Finally, conclusions of the experiment will be drawn accompanied by data and graphic enclosures.
Didik Wahjudi and Gan Shu San.
Didik Wahjudi and Gan Shu San.
