drag force


Also found in: Acronyms, Encyclopedia.

drag force

a retarding force, acting opposite to the direction of motion of a body or object. Often caused by air resistance or friction. form drag the resistance force caused by the shape of a body or object which is moving through a fluid medium. surface drag the force, opposing the direction of motion, that is due to the interaction between the surface of an object and the medium through which it is passing (or that is moving past it). propulsive drag force the force used by sportspeople to propel themselves, usually by pushing against a fluid medium (e.g. swimmers or rowers).
References in periodicals archive ?
2010) Turbulence model choice for the calculation of drag forces when using the CFD method.
Therefore, the drag force loaded on the particle increased with the increasing inlet velocity of the cyclone, resulting in an enhanced chance of particle escape.
In order to investigate the effects of the different parameters on the drag force produced by the light-bar, the light bar was represented parametrically in terms of the parameters shown in figure 8 and the length was kept constant.
This could explain the high energy level to which the longline is exposed as well as the drag force of the system concentrated on a single mooring line and at only one end of the main line when the oceanographic parameters are parallel, leading the maximum force on these components to increase significantly (forces located at the top of the longline system) compared with what occurs when the direction is perpendicular.
Wheel aerodynamic resistance (30%-scale only): The overall aerodynamic resistance to the motion of a ground vehicle includes not only the drag force of the vehicle in-line with the direction of motion, but also the aerodynamic torque experienced by the wheels.
Applying Newton's 2nd law to the case of an oil drop moving under the action of gravity, an electric force, and subjected to a drag force gives
In the past two basically different shock tube experiments were conducted aimed at studying the drag force (and drag coefficient) acting on a sphere as a result of its head-on collision with a planar shock wave.
Resistance, which is main evaluating criterion, can be called as a drag force.
Therefore, the drag force exerted on vegetation per unit volume can be expressed as follows [16]:
Convective cooling and the deforming drag force of the water flow also have an effect on pellet shape.