The sweep angle effect on the aerodynamic behaviour of the wing
Authors: Moskalenko V.O., Kosyrev A.A.
Published in issue: #2(74)/2018
DOI: 10.18698/2308-6033-2018-2-1735
Category: Aviation and Rocket-Space Engineering | Chapter: Aerodynamics and Heat Transfer Processes in Aircrafts
The use of the swept wing makes it possible to reduce the normal component of the Mach number and provide subsonic flow around the aircraft wing leading edge. This causes a decrease in the wave resistance and, consequently, the air wing drag as a whole. To study the sweep angle effect on the aerodynamic behaviour, mathematical simulation of the flow around the wing model of different sweeps was carried out at the subsonic velocity of the approach flow. As a result of numerical calculation in the SolidWorksFlowSimulation package, we obtained the data on aerodynamic behaviour of the wings of different sweeps. Moreover, we plotted the graphs showing the dependence of the aerodynamic coefficients on the attack and sweep angles. Furthermore, we obtained the pressure and velocity fields in vertical and horizontal flow planes and investigated these fields for the swept wing. Finally, we analyzed the effect of the flow pattern on the aerodynamic behaviour of the sweptforward and sweptback wings and determined the sweep angle at which the advantage of the sweptforward wings is provided in comparison with the sweptback wings
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