profile drag


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profile drag

n
(General Physics) the sum of the surface friction drag and the form drag for a body moving subsonically through a fluid
References in periodicals archive ?
Acceleration or deceleration in the flow that moves around the cylinder causes significant change to the structure of the boundary layer and, correspondingly, change to the position of the point of boundary layer separation: during acceleration of the flow around the cylinder ([partial derivative]W/[partial derivative][tau]) > 0, the point of separation shifts backwards, causing a decrease in aerodynamic trail width and as a result profile drag caused by viscous forces in the flow (the coefficient of profile drag [C.
When the angle of attack is increased (deceleration of the flow), the separation point moves to the leading edge of a blade, and during decrease in angle of attack (flow acceleration), it moves to the trailing edge, and correspondingly the coefficient of grid profile drag [C.
Wing drag was calculated as the sum of zero-lift drag, induced drag, wave drag, profile drag and interference drag.