Hydrodynamic friction

friction produced by the viscosity of a liquid in motion.

See also: Hydrodynamic

References in periodicals archive ?
It is able to measure hydrodynamic friction to determine the absolute size and shape of interacting molecules using high frequency dynamic electrical switching mode.
The majority of the hydrodynamic friction losses occur at the midstroke region, because the highest piston velocity is achieved at this position [13].
Since film thickness is inversely proportional to hydrodynamic friction coefficient, the rougher GG07 liner will exhibit lower friction in the hydrodynamic regime.
The hydrodynamic friction could also form when the sliding velocity increased from 3.47 m/s to 6.07 m/s, where the COF increased to some degree.
Indeed, the hydrodynamic friction increases with viscosity.
Focusing on tribology--the study of friction between two shearing forces, and the hydrodynamic friction experienced in a blink--Dr Pult explained that shearing forces are greater in the higher viscosity tear film of a dry eye patient, so he recommended fitting dry-eyed contact lens patients with a lens which has a low coefficient of friction.
Note that the dielectric friction coefficient at infinite dilution [[beta].sup.[degrees].sub.p] is in general of the order of few percent and decreases with elongation L of the polyion so that the conductibility of the polyion is essentially governed by the ionic condensation process and the hydrodynamic friction [[lambda].sub.Poly] [approximately equals] [alpha] [[lambda].sub.P.sup.[degrees]HD].
Hydrostatic and hydrodynamic friction both have a fluid film of lubricant that separates the solid surfaces, the first created by externally applied fluid pressure, the second by viscous action.
where [d.sub.vx], [d.sub.[omega]y], is the coefficients of hydrodynamic friction according to the linear and rotational degrees of freedom correspondingly, l if the distance from the thruster to the AUV masses center, [[delta].sub.dmax] is the maximally possible thruster orientation angle in the horizontal plane
From physics perspective, in this field, leakages and errors depend on mechanical friction of the meter's rotor and hydrodynamic friction due to liquid viscosity.
It is able to measure a hydrodynamic friction for determining the absolute size and shape of the interacting molecules using a high-frequency mode, the dynamic electrical switching.