30(b), compared with the aft tail configuration, exhibit of two advantages; lower trim drag and lower sonic boom intensity. The canard contributes to lift compared to a aft tail configuration. Hence the size of the main wing is reduced. The lower lift on the main wing leads to lower ...
This method can be used to show the favorable effect of wing sweep on the wave drag coefficient over the transonic Mach number range. Apart from these advantages the chapter also presents the adverse effects of wing sweep. It is shown how the chordwise pressure distribution changes over the ...
The results show that, the two morphing schemes including "The forward-swept wing embedding in the main wing" and "the main wing rotation" both have advantages and disadvantages in the design aspects of the forward-swept wing and its morphing mechanism, in addition, the aerodynamic evaluation ...
1, resulting in an increased lift force on the wing. With the increase of angle of attack, vortex breakdown occurs downstream. As the angle of attack further increases, the location of breakdown propagates upstream, leading to wing stall. In order to extend the flight envelope, various flow ...
An investigation was performed to compare closely coupled dual-wing aircraft and swept-forward sweptrearward (SFSR), dual-wing aircraft to corresponding single-wing aircraft to judge the advantages offered by aircraft designed with multi... Mark D. Rhodes,Bruce P. Selberg - 《Journal of Aircraft...
Tailless designs must incorporate aerodynamic compromises for control, which have inhibited potential advantages. A morphing mechanism, capable of changing the twist of wing and that can also provide pitch, roll and yaw control for a tailless swept wing aircraft is the first step to a series of...
Although the aerodynarnic advantages of forward-swept wings were recognized during the Second World War, not until the advent of strong, lightweight composite materials did it become possible to build airplanes that could benefit from this concept. The Grumman X-29A forward-swept-wing demonstrator ...
wing airplane, and horizontal forward-swept wings are additionally arranged at the top ends of the three thin-wing type vertical columns A, B and C so as to form the combined-wing layout of the flying wing and the forward-swept wings; elevators are arranged on the horizontal forward-swept ...
The purpose of this work is to shed light on the effect of the pivot position on the surface pressure distribution over a 3D wing in different flight conditions. The study is intended to support the design and development of aerospace vehicles where stability analysis, performance optimization, ...
The combination of visual inspection (VI) and radiographic bite-wing images is accepted as the standard procedure for caries diagnosis6; however, both methods have low sensitivity, particularly in the case of early lesions. Radiography has inherent errors; it can detect lesions only after 30–40%...