viscosity

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Related to Viscous friction: Viscous Force

vis·cos·i·ty

 (vĭ-skŏs′ĭ-tē)
n. pl. vis·cos·i·ties
1. The condition or property of being viscous.
2. Physics Coefficient of viscosity.

viscosity

(vɪsˈkɒsɪtɪ)
n, pl -ties
1. the state or property of being viscous
2. (General Physics) physics
a. the extent to which a fluid resists a tendency to flow
b. Also called: absolute viscosity a measure of this resistance, equal to the tangential stress on a liquid undergoing streamline flow divided by its velocity gradient. It is measured in newton seconds per metre squared. Symbol: η See also kinematic viscosity, specific viscosity

vis•cos•i•ty

(vɪˈskɒs ɪ ti)

n., pl. -ties.
1. the state or quality of being viscous.
2.
a. the property of a fluid that resists the force tending to cause the fluid to flow.
b. the measure of the extent to which a fluid possesses this property.
[1375–1425]

vis·cos·i·ty

(vĭ-skŏs′ĭ-tē)
The resistance of a substance to flow. A substance that can flow easily has a low viscosity. A substance that cannot flow easily has a high viscosity.

viscosity

the quality or condition of being able to adhere to things. — viscous, adj.
See also: Materials, Properties of

viscosity

In fluids, the resistance to flow.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.viscosity - resistance of a liquid to shear forces (and hence to flow)
consistency, eubstance, consistence, body - the property of holding together and retaining its shape; "wool has more body than rayon"; "when the dough has enough consistency it is ready to bake"
stickiness - the property of sticking to a surface
sliminess - a property resembling or being covered with slime
glueyness, gluiness, gumminess, ropiness, tackiness, viscidity, viscidness, cohesiveness - the property of being cohesive and sticky
gelatinousness, glutinosity, glutinousness - the property of having a viscosity like jelly

viscosity

noun
The physical property of being viscous:
Translations
viskoosisuusviskositeetti

viscosity

[vɪsˈkɒsɪtɪ] Nviscosidad f

viscosity

[vɪsˈkɒsəti] nviscosité f

viscosity

nZähflüssigkeit f; (Phys) → Viskosität f

viscosity

[vɪsˈkɒsɪtɪ] nviscosità

vis·cos·i·ty

n. viscosidad, cualidad de ser viscoso, esp. la propiedad de los líquidos de no fluir libremente debido a la fricción de las moléculas.

viscosity

n (pl -ties) viscosidad f
References in periodicals archive ?
The restorative and dissipative forces are represented by the corresponding coefficients of rigidity of elastic suspension [k.sub.v] and viscous friction [b.sub.v].
In robot identification applications, a model including Coulomb and viscous friction is frequently applied [10, 11].
The decision to maintain the viscous friction parameter in the model during the simulation is explainable by the fact that this is inherent to the valve.
This paper considers a solution to the problem of development of the effective accommodation system for faults caused by errors in the sensor, which measure the position of output shaft of gear and by changing the value of viscous friction coefficient in electric servo actuators of the UMs described by mathematical model including differential equations with nonlinearity and variable parameters and not fully known state vector.
The viscous friction model is shown in the Figure.6.
The result from the literature survey however suggests a possibility of using textures also for the control of the viscous friction losses and a hypothesis tested in this study was formulated based on the assumption that a texture with a valley geometry larger both laterally and vertically than previously reported traditional cylinder liner concepts would constitute a texture able to decrease the hydrodynamic friction losses.
The 3D diagrams for the dimensional tangential stresses in Figures 12(c), 12(d), 14(c), 14(d), 16(c), and 16(d) were derived on the basis of 3D diagrams of w in Figures 12(a), 12(b), 13(a), 14(a), 14(b), 15(a), 15(c), 16(a), 16(b), 17(a), and 17(c) according to Newtonian formula for viscous friction [bar.[tau]] = [[bar.[eta]].sub.vis] x [absolute value of [bar.dw]/[bar.dz]].
where [theta] and [omega] are the rotor angle and speed, respectively; [[phi].sub.j] is the permanent magnet flux; p is the pole pairs; J is the moment of inertia of the PMSM; B is the viscous friction coefficient; [u.sub.d] and [u.sub.q] are the voltages in dq axis; [i.sub.d] and [i.sub.q] are the currents in dq axis; R is the phase winding resistance; L is the inductance; [T.sub.L] is the load torque.
Minimization of the total dissipated energy taking into account Coulomb and viscous friction has been proposed by Xuejun et al.
where [J.sub.m] is the motor moment of inertia, [J.sub.l] is the load moment of inertia, [T.sub.s] represents the transmitted shaft torque, [T.sub.m] is the motor torque, [T.sub.d] is the load torque disturbance, [c.sub.s] is the inner damping coefficient of the shaft, [c.sub.m] is the motor viscous friction coefficient, [c.sub.l] is the load viscous friction coefficient, [k.sub.s] is the shaft elasticity, 2b is the total backlash angle, and f([[theta].sub.d]) is a dead zone function as
Therefore, it can be effectively reducing axial viscous friction force by enhancing velocity amplitude of torsional vibration.