Wind Tunnel Test of a Paraglider ( flexible ) Wing Canopy
نویسندگان
چکیده
Abstract: An inflatable cell model of paragrlider’s wing canopy has been investigated in wind tunnel experiments, which is designed to represent the dynamic behaviors of each cell comprising the canopy. Effects of air-intake of paraglider canopy have also been investigated in this study. The improvement of the shape of air intake and pressure distribution from the standpoints of aerodynamics will contribute to raise flexible wing gliding ratio and safety. To perform the experiment, flexible wing canopy cell model and simplified rigid air intake model had been prepared. Cross-sectional wing profiles and internal surface pressures of the cell model are measured at different angle of attack and Reynolds number, to understand the formation characteristic of paraglider wing canopy model. The cell model is fully inflated at greater than a few degrees angle of attack. In order to understand the lift and drag behaviors, external pressure distributions of the cell model are measured.
منابع مشابه
Wind Tunnel Investigation of Pressure Distribution and Transition Position of a Swept 3D Wing
Extensive wind tunnel tests are conducted to evaluate surface pressure distribution of a semi span swept wing. The wing section has a laminar flow airfoil similar to NACA 6-series airfoils. The investigations are conducted at various speeds and angles of attack. Surface pressure distribution over the wing upper surface is measured for both chordwise and spanwise sections. Statistical analyses a...
متن کاملEffect of Wing Sweep Angle on the Vortex Interaction of a Tail-Wing Configuration
The goal of this investigation is to study the effect of wing sweep angle on the horizontal wing-body- tail configurations in subsonic flow. For this purpose, a series of wind tunnel tests were conducted on a model having a moveable horizontal tail and a wing planform with different sweep angles. Tests were performed at different tail deflection angles. Static surface pressure distribution over...
متن کاملComparison Final Velocity for Land Yacht with a Rigid Wing and Cloth Sail
The powering requirement of a land yacht is one of the most important aspects of its design. In this respect the wind tunnel testing is an effective design tool. In fact, changing the parameters of the vehicle and testing the changes in the wind tunnel will give us a better understanding of the most efficient vehicle, and yet it is time consuming, expensive, and has inherent scaling errors. Ano...
متن کاملAn Experimental Investigation of the Flowfield over a Low Aspect Ratio Wing
A wind tunnel investigation was performed to study the flow field over a 70° swept sharped edge delta wing model at high angles of attack. The experiments were conducted in the subsonic wind tunnel at the Department of Mechanical Engineering, Sharif University of Technology. Velocity profiles have been measured using a special pitot tube and hot wire anemometer at angles of attacks of 10 to 35 ...
متن کاملMorphing Wing Real Time Optimization in Wind Tunnel Tests
In this paper, wind tunnel results of a real time optimization of a morphing wing in wind tunnel for delaying the transition towards the trailing edge are presented. A morphing rectangular finite aspect ratio wing, having a wind tunnel experimental airfoil reference cross-section, was considered with its upper surface made of a flexible composite material and instrumented with Kulite pressure s...
متن کامل