surface friction

surface friction

[′sər·fəs ‚frik·shən]
(geophysics)
The drag or skin friction of the earth on the atmosphere, usually expressed in terms of the shearing stress of the wind on the earth's surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The result will be a very optimistic number that does not account for runway surface friction, angular momentum or excess thrust versus weight and drag, or a tailwind component.
The device includes a body and an array of fibers attached thereto, with at least some of the fibers maintaining contact with the juxtaposed surface and having anisotropic surface friction therewith, such that mutual vibratory motion between the device and the juxtaposed surface causes the device to move along the surface.
A matte, canvas-like surface friction wears down the white nibs of the pencil just like paper wears down graphite in cedar pencils.
Under this load, the mechanical vibrations are transmitted to the interface between the material surfaces, which focuses the vibration to create intermolecular and surface friction. This friction creates heat and a subsequent melt, which solidifies into a welded bond.
They found that all eight surfaces maintained predominately greater than 1.0 mm mean profile depth (MPD), and however, there is no correlation between HFST surface friction and particle shape and angularity.
Medalist MD-16100 low-tack gels exhibit less surface friction than standard TPE gels, providing smooth surfaces and improved haptics.
After full cure, the products are said to enable plastic-like, smooth optics with comparatively high hardness and low surface friction. (Dow Corning)
When the bias voltage exceeded 0 V, the differences between the changing trends of the surface friction force become distinct: after laser processing, the surface friction was significantly lower than before.
A council spokesman said the road was resurfaced in August 2014 and the surface friction was checked again last year with no faults found.
According to a study in Japan last 2010, rice water decreases hair surface friction and improves hair elasticity.