boundary-layer edge
51Messerschmitt Bf 109 variants — Main article: Messerschmitt Bf 109 Bf 109 Bf 109G 10, with Erla Haube canopy and taller, wooden vertical fin/rudd …
52Natural environment — This article is about the environment. For other uses, see Environment (disambiguation). See also: Nature Land management policies have been developed to preserve the natural characteristics of Hopetoun Falls, Australia while allowing ample… …
53Organic solar cell — An organic photovoltaic cell (OPVC) is a photovoltaic cell that uses organic electronics a branch of electronics that deals with conductive organic polymers or small organic molecules[1] for light absorption and charge transport. The plastic… …
54Convection — This figure shows a calculation for thermal convection in the Earth s mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less dense lower boundary layer sends plumes of hot material upwards, and likewise,… …
55Numerical weather prediction — Weather models use systems of differential equations based on the laws of …
56Jim Bede — James R. Jim Bede is an aircraft designer, who is often credited with the creation of the modern kitplane market. He has designed well over a dozen aircraft since the 1960s, but a string of business failures have kept most of these designs out of …
57POHLHAUSEN — GERMANY (see also List of Individuals) 20.5.1890 Mittwaida/D 18.11.1980 Gainesville FL/USA Karl Pohlhausen was educated as a mathematician at the Universities of Jena and Göttingen, there being attached to Ludwig Prandtl (1875 1953). In 1919,… …
58Natural convection — Bénard cells. Natural convection is a mechanism, or type of heat transport, in which the fluid motion is not generated by any external source (like a pump, fan, suction device, etc.) but only by density differences in the fluid occurring due to… …
59Reynolds number — In fluid mechanics and heat transfer, the Reynolds number mathrm{Re} is a dimensionless number that gives a measure of the ratio of inertial forces ({old mathrm V} ho) to viscous forces (mu / L) and, consequently, it quantifies the relative… …
60Diverterless supersonic inlet — Testing of the F 35 Diverterless Supersonic Inlet on an F 16 testbed. The original intake is shown in the top image. A diverterless supersonic inlet (DSI) is a type of jet engine air intake used by some modern combat aircraft to control air flow… …
