A measure of viscosity numerically equal to the force required to move a plane surface of one square centimeter per second when the surfaces are separated by a layer of fluid one centimeter in thickness It is the ratio of the shearing stress to the shear rate of a fluid and is expressed in dyne seconds per square centimeter (DYNE SEC/CM2); 1 centipoise equals 01 poise
Poise is a graceful, very controlled way of standing and moving. Ballet classes are important for poise and grace. A centimeter-gram-second unit of dynamic viscosity equal to one dyne-second per square centimeter. to put or hold something in a carefully balanced position, especially above something else poise sth over/above sth
a cgs unit of dynamic viscosity equal to one dyne-second per square centimeter; the viscosity of a fluid in which a force of one dyne per square centimeter maintains a velocity of 1 centimeter per second
CGS unit of absolute viscosity: shear stress (in dynes per square centimeter) required to move one layer of fluid along another over a total layer thickness of one centimeter at a shear rate of one centimeter per second Dimensions are dyne-sec/cm2 The CENTIPOISE (cP) is 1/100 of a poise and is the unit of absolute viscosity most commonly used Whereas ordinary viscosity measurements depend on the force of gravity on the fluid to supply the shear stress and are thus subject to distortion by differences in fluid density, ABSOLUTE VISCOSITY measurements are independent of density and are directly related to resistance to flow (See also VISCOSITY )
Watchmakers say that a balance is "in poise" when the balance is in neutral equilibrium, as verified on the poising tool for example Its significance is that the center of gravity lies on the axis of rotation
The CGS unit of dynamic viscosity The unit is expressed in dyne second per square centimeter The centipoise (cP) is more commonly used The formal definition of viscosity arises from the concept put forward by Newton that under conditions of parallel flow, the shearing stress is proportional to the velocity gradient If the force acting on each of two planes of area A parallel to each other, moving parallel to each other with a relative velocity V, and separated by a perpendicular distance X, be denoted by F, the shearing stress is F/A and the velocity gradient, which will be linear for a true liquid, is V/X Thus, F/A = nV/X, where the constant n is the viscosity coefficient or dynamic viscosity of the liquid