- lift efficiency
- Oil: (ing) LE
Универсальный русско-английский словарь. Академик.ру. 2011.
lift efficiency
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Efficiency — as a technical term may refer to: * Algorithmic efficiency, optimizing the speed and memory requirements of a computer program * Efficient energy use, useful work per quantity of energy ** Energy conversion efficiency, desired energy output per… … Wikipedia
lift — vb 1 Lift, raise, rear, elevate, hoist, heave, boost are comparable when meaning to move from a lower to a higher place or position. Lift often carries an implication of effort exerted to overcome the resistance of weight {lift a large stone}… … New Dictionary of Synonyms
Lift-induced drag — In aerodynamics, lift induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting… … Wikipedia
Lift-to-drag ratio — In aerodynamics, the lift to drag ratio, or L/D ratio ( ell over dee in the US, ell dee in the UK), is the amount of lift generated by a wing or vehicle, divided by the drag it creates by moving through the air. A higher or more favorable L/D… … Wikipedia
lift/drag ratio — The ratio of the coefficient of lift to the coefficient of drag of an airfoil at various angles of attack. It is a measure of the airfoil’s efficiency. The angle of attack that gives the best lift by drag ratio is the most efficient angle of… … Aviation dictionary
Artificial lift — involves the use of artificial means to increase the flow of liquids, such as crude oil or water, to the surface of a production well. Generally this is achieved by a mechanical device inside the well, such as a pump; decreasing the weight of the … Wikipedia
Translational lift — is the extra lift created/received when a helicopter s forward speed increases from the hover. It should be noted that if there is a steady wind (above 10 knots) a helicopter in the hover may already be in translational lift.It is created when… … Wikipedia
Oswald efficiency number — The Oswald efficiency, similar to the span efficiency, is a correction factor that represents the change in drag with lift of a three dimensional wing or airplane, as compared with an ideal wing having the same aspect ratio and an elliptical lift … Wikipedia
Zero-lift drag coefficient — In aerodynamics, the zero lift drag coefficient CD,0 is a dimensionless parameter which relates an aircraft s zero lift drag force to its size, speed, and flying altitude. Mathematically, zero lift drag coefficient is defined as CD,0 = CD − CD,i … Wikipedia
Fuel efficiency in transportation — This page describes fuel efficiency in means of transportation. For the environmental impact assessment of a given product or service throughout its lifespan, see life cycle assessment. Caveats Comparing Fuel efficiency in transportation is a bit … Wikipedia
I-Active Valve Lift System — (AVLS) is an automobile variable valve timing technology used by Subaru. It varies the duration, timing and lift of the intake valves by using hydraulic pressure to lock two sets of independent camshaft lobes together. This system is similar to… … Wikipedia
