drag coefficient


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Related to drag coefficient: Drag force

drag coefficient

[′drag ‚kō·i′fish·ənt]
(fluid mechanics)
A characteristic of a body in a flowing inviscous fluid, equal to the ratio of twice the force on the body in the direction of flow to the product of the density of the fluid, the square of the flow velocity, and the effective cross-sectional area of the body.

drag coefficient

drag coefficient
A typical drag coefficient curve of an airfoil.
i. Nondimensional coefficient equal to total drag divided by ¼ ρ V2S, where ρ is density, V is indicated air speed, and S is surface area of the body.
ii. A coefficient representing the drag on a given airfoil or other body or a coefficient representing a particular element of drag.
References in periodicals archive ?
To specify the drag coefficient of non-spherical particles we used an approach described by Loth [13].
18] presented the following expression to describe the drag coefficient of non-spherical particles:
Since D is proportional to the product of the vehicle frontal area and the drag coefficient, this objective function, for a given density and velocity, represents a compromise between the size and aerodynamic performance of the vehicle.
The corrections are on the order of 2% to 4% of the measured drag coefficient, depending on the yaw angle, the vehicle configuration, and the strut configuration.
Drag coefficient is an exact representation of a bullet's drag, and when matched against Doppler-recorded velocities, it produces an exact drag curve of a projectile as a function of velocity.
Next the bubble-based drag coefficient is derived from the resolved structural parameters.
In both cases, drag coefficient is minimized with lift coefficient and the wing volume being fixed.
The car also managed to lose 130 kilograms of weight and achieve a superior degree of aerodynamic efficiency with a drag coefficient of only 0.
Remember, the primary cause of the progressive loss of arrow speed is its drag coefficient.
Its sportive design ensures a low wind drag coefficient resulting in less fuel consumption.
Grid and domain size independence: The effect of domain size was examined by evaluating the drag coefficient CD and average Nusselt number Nuav for different upstream length LUS downstream length LDS and height H(tab.
The variation of drag coefficient with AoA is presented in Figure 5.