It is caused by the vortices, or swirling air masses, that are produced at the wingtips of an aircraft. These vortices are a byproduct of the lift generated by the wings during flight. When an aircraft is in motion, the wings create areas of high-pressure air beneath them and low-...
Techncally, you could stall an aircraft at any speed. Let's take a look at how they happen and some cases where recovery was not successful. This opens the need for nacelle strakes to counteract the airflow separation. These nacelle strakes can induce stable longitudinal vortices to redirect...
Lift-induced drag is generated as a byproduct of the downwash from the vortices,which affects the aircraft’s aerodynamic efficiency. Depending upon the aircraft type and phase of flight, approximately 35 to 40% of the total drag can be associated with lift-induced drag. Wingtip devices Wingtip...
awingtip vortices are created only when an aircraft is 只有当航空器是时,翼梢漩涡被创造[translate] aLCA studies overlook this fact by arbi-trarily assuming the service life of components. LCA研究通过任意假设组分产品使用期限俯视这个事实。[translate] ...
By smoothing the airflow across the upper wing near the tip, wingtips increase the lift (generated at the wingtip itself) and reduce the lift-induced drag caused by wingtip vortices thus improving lift-to-drag ratio. This increases the aircraft’s fuel efficiency and obviously increases the rang...
The vortices derive from the turbulent mixing of air of varying pressure on the upper and lower surfaces of the body. These are needed to create lift. As the lift increases, so does the lift-induced drag. For an aircraft this means that as the angle of attack and the lift coefficient in...
Wake turbulenceforms behind an aircraft as it passes through the air creating wingtip vortices. These vortices can remain in the air or over the ground for up to three minutes after the passage of an aircraft. The greatest vortex strength occurs when the generating aircraft is HEAVY, CLEAN, an...
Decay Characteristics ofWake Vortices from Jet Transport Aircraft This form of decay is exactly the opposite of what is observed at low Reynolds number for small aircraft or in wind tunnels. The stability of the ... DC Burnham,JN Hallock - 《Journal of Aircraft》 被引量: 24发表: 2013年 ...
Waves of various degrees, choppiness, currents, ripples, vortices, tidal variations, inclement climatic conditions, and the oceanic surface are rife with disturbances in eclectic forms throughout. So when it comes to ships, after main parameters like structural strength, and propulsive efficiency, desi...
Many aircraft accidents each year are caused by encounters with unseen airflow hazards near the ground, such as vortices, downdrafts, low level wind shear,... CR Aragon - IEEE 被引量: 16发表: 2004年 Comparative Cultural Studies and Latin America 149 Towards a Map of the Current Critical De...