**coefficient of drag** — noun the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body • Syn: ↑drag coefficient • Hypernyms: ↑coefficient … Useful english dictionary

**coefficient of drag** — See drag coefficient … Dictionary of automotive terms

**coefficient of drag.** — See drag coefficient … Useful english dictionary

**coefficient of drag (CD)/drag coefficient** — A coefficient dependent upon the angle of attack, shape of the airfoil, Reynolds number, and Mach number. Drag coefficient (CD ) = Drag (D)/Dynamic Pressure (q) or {1 /2 (Density (ρ) × Air Speed2 (V2 ) × Wing Area (S). CD = D/qS, or 2D/ρV2 S … Aviation dictionary

**Drag (physics)** — Shape and flow Form drag Skin friction 0% 100% 10% 90% … Wikipedia

**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 coefficient** — noun the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body • Syn: ↑coefficient of drag • Hypernyms: ↑coefficient * * * noun : a factor representing the ratio of the aerodynamic drag… … Useful english dictionary

**drag curve** — A curve of a drag coefficient plotted against either the lift coefficient or the angle of attack. Graph drawn for coefficient of lift against coefficient of drag. Relationship between drag coefficient and angle of attack … Aviation dictionary

**drag** — i. That component of aerodynamic forces acting on the wing or the airfoil section, which is parallel and opposite to the relative airflow. The sources of drag are the pressure distribution patterns over the airfoil, called induced drag; the skin… … Aviation dictionary

**drag** — [1] To accelerate a vehicle from a standing start, over a course one fourth mile in length. Also called drag racing. [2] Used by some drivers when referring to challenging another driver to an acceleration race. [3] Air resistance. See… … Dictionary of automotive terms