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Supercritical airfoils feature four main benefits: they have a higher drag-divergence Mach number, [21] they develop shock waves farther aft than traditional airfoils, [22] they greatly reduce shock-induced boundary layer separation, and their geometry allows more efficient wing design (e.g., a thicker wing and/or reduced wing sweep, each of which may allow a lighter wing).
2 Converging-diverging nozzles, redundancy. 1 comment. 3 Supercritical airfoil Mach Number ... 6 This article is about what is good about these wings. 1 comment ...
Vortilons can be seen projecting from underneath the center leading edge of the wings of this Hawker 850XP. Vortilons are fixed aerodynamic devices on aircraft wings used to improve handling at low speeds. [1] [2] The vortilon was invented [3] by aerodynamicists working at Douglas Aircraft who had previously developed the engine pylons for the ...
The supercritical airfoil is a type that results in reasonable low speed lift like a normal airfoil, but has a profile considerably closer to that of the von Kármán ogive. All modern civil airliners use forms of supercritical aerofoil and have substantial supersonic flow over the wing upper surface.
The NACA four-digit wing sections define the profile by: [2] First digit describing maximum camber as percentage of the chord. Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord. Last two digits describing maximum thickness of the airfoil as percent of the chord. [3]
After World War II, NACA research began to focus on near-sonic and low-supersonic airflow.After considering the sudden drag increase which a wing-fuselage combination experiences at somewhere around 500 mph (800 km/h), Whitcomb concluded that "the disturbances and shock waves are simply a function of the longitudinal variation of the cross-sectional area" – that is, the effect of the wings ...
Supercritical water: Supercritical steam generator , a steam generator operating above the critical point of water, hence having no water–steam separation Supercritical water oxidation or SCWO, a process that occurs in water at temperatures and pressures above a mixture's thermodynamic critical point
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