newtonian viscosity


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Related to newtonian viscosity: Newtonian flow

new·to·ni·an vis·cos·i·ty

the viscosity characteristics of a newtonian fluid.

Newton,

Sir Isaac, English physicist, 1642-1727.
newton - derived unit of force in the SI system.
Newton disk - a disk on which there are seven colored sectors, which, when rapidly rotated, appear white.
Newton law - the attractive force between any two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Synonym(s): law of gravitation
Newton rings - colored rings on thin surfaces.
newtonian aberration - the difference in focus or magnification of an image arising because of a difference in the refraction of different wavelengths composing white light. Synonym(s): chromatic aberration
newtonian constant of gravitation - a universal constant relating the gravitational force, attracting two masses toward each other when they are separated by a distance.
newtonian flow - the type of flow characteristic of a newtonian fluid.
newtonian fluid - a fluid in which flow and rate of shear are always proportional to the applied stress.
newtonian viscosity - the viscosity characteristics of a newtonian fluid.
References in periodicals archive ?
This equation is valid for linear or Newtonian viscosity. Assuming the thermodynamic equivalences proposed by Miller and considering an Arrhenius dependency of the viscosity with temperature (Eq.
6, there is a radial position where the viscosity equals the equivalent Newtonian viscosity and the shear rate is given by the C-Y model.
As above, the equivalent Newtonian viscosity is defined as that giving the same pressure gradient at the same flow rate, and so, from Eq.
The equivalent viscosity [[mu].sub.e] is the Newtonian viscosity giving the same pressure gradient at the same flow rate.
For a values of 0.5, 1, 2, and 3, the percentage errors in wall shear stress for the local power-law model using the tangent to the viscosity curve at the shear rate 8U/D are respectively 1.2, 1.8, 3.2, and 4.3%, and those for the model tangent to the viscosity curve at the equivalent Newtonian viscosity [[mu].sub.e] are 0.9, 1.5, 3.2, and 4.4%.
For the flow rate 0.1 [cm.sup.3] [s.sup.-1], the equivalent Newtonian viscosity is 0.0797 Pa x s and the corresponding shear rate is 0.0996 [s.sup.-1].
where x is the direction along the length of the slot in the flow direction, and the equivalent Newtonian viscosity by
An effective way to implement the truncated power law model is to switch between Newtonian and power-law flow when both give the same pressure gradient using an equivalent Newtonian viscosity. In general, viscosity variation through the die adversely affects performance.
[T.sup.v] is described in the framework of the Newtonian viscosity as following:
For polymer geosynthetics, the parameter [eta]'([[epsilon].sup.ir], [[epsilon].sup.ir]) is not a constant, unlike the Newtonian viscosity. By replacing [T.sup.v] with Eq.
where v is the velocity vector, [rho] the density, f the body force, [sigma] the total stress tensor, p the pressure, [tau] the deviatoric stress tensor, [C.sub.p] the heat capacity of polymer, T the temperature of polymer, k the thermal conductivity of polymer, [[eta].sub.E] the Newtonian viscosity, and D the rate of strain tensor.