coefficient of viscosity


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coefficient of viscosity

n. pl. coefficients of viscosity
The degree to which a fluid resists flow under an applied force, measured by the tangential friction force per unit area divided by the velocity gradient under conditions of streamline flow.
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Noun1.coefficient of viscosity - a measure of the resistance to flow of a fluid under an applied forcecoefficient of viscosity - a measure of the resistance to flow of a fluid under an applied force
coefficient - a constant number that serves as a measure of some property or characteristic
References in periodicals archive ?
Among the experiments themselves are to determine the wavelength of monochromatic light (sodium light) by Newton's ring, to determine the specific rotation of cane sugar solutions using half-shade polarimeter, to verify Stefan's Law by electric method using a vacuum diode, to determine the energy band gap of a given extrinsic semi-conductor material by thermal variation using a four probe method, and to determine the coefficient of viscosity of a water by Meyer's disc method.
where Y (t) is the loosen modulus, Y (t) = E[e.sup.-Et/[eta]], [eta] is the coefficient of viscosity (Gpa*h), and t is the time (h).
Two different sets of experiments were performed to determine the variation of coefficient of viscosity with temperature and the shear rate.
[13] investigated the pressure coefficient of melt viscosity using a high-pressure sliding plate rheometer (HPSPR) and capillary rheometers with driven piston and nitrogen counter-pressure to control the capillary exit pressure; they found that the pressure coefficient of viscosity, [??], agreed fairly well with data from different laboratories and instruments.
where a = [gamma]/[[mu].sub.[infinity]] and [T.sub.r] = [T.sub.[infinity]] -1/[gamma], is the fluid temperature, [mu] is the coefficient of dynamic viscosity, [[mu].sub.[infinity]] is the coefficient of viscosity at the free stream, a, [T.sub.r] and [gamma] are constants whose values depend on the reference state and the thermal property of the fluid.

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