- drag equation
- формула (лобового) сопротивления; уравнение поступательного движения <ЛА> в проекциях на скоростную ось
Авиасловарь. М.А.Левин. 2004.
drag equation
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Drag equation — In fluid dynamics, the drag equation is a practical formula used to calculate the force of drag experienced by an object due to movement through a fully enclosing fluid. The equation is attributed to Lord Rayleigh, who originally used L2 in place … Wikipedia
Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% … Wikipedia
Drag coefficient — In fluid dynamics, the drag coefficient (commonly denoted as: cd, cx or cw) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment such as air or water. It is used in the drag equation,… … Wikipedia
Drag — Contents 1 In science and technology 2 In arts, performance arts and entertainment 3 Other uses … Wikipedia
Drag count — A drag count is a single unit of drag as defined by aerospace engineers. Drag is generally computed using the equation: Where: ρ is the air density v is the current airspeed Cd is the drag coefficient (a dimensionless constant, usually on the… … Wikipedia
Morison equation — Flow forces according to the Morison equation for a body placed in a harmonic flow, as a function of time. Blue line: drag force; red line: inertia force; black line: total force according to the Morison equation. Note that the inertia force is… … Wikipedia
Parasitic drag — (also called parasite drag) is drag caused by moving a solid object through a fluid. Parasitic drag is made up of many components, the most prominent being form drag. Skin friction and interference drag are also major components of parasitic drag … Wikipedia
Constitutive equation — Many defining equations are in the form of a constitutive equation, since parameters of a property or effect associated matter are characteristic to the substance in question. A large number of other defining equations not specifically… … Wikipedia
Aerodynamic drag — Note This article is currently under renovation, and may, at times, appear disjoint. Please see the [http://en.wikipedia.org/wiki/Talk:Aerodynamic drag Discussion Page] . Introduction Aerodynamic drag refers to the retarding force on moving… … 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
Automobile drag coefficient — The drag coefficient is a common metric in automotive design, where designers strive to achieve a low coefficient. Minimizing drag is done to improve fuel efficiency at highway speeds, where aerodynamic effects represent a substantial fraction of … Wikipedia
