apparent viscosity


Also found in: Encyclopedia.

ap·par·ent vis·cos·i·ty

the viscosity calculated from the Poiseuille law at any particular flow and tube diameter; it is used for suspensions, such as blood, that exhibit anomalous viscosity and the Fahraeus-Lindqvist effect.
References in periodicals archive ?
The apparent viscosity is an important melt property, and often used as an indicator of other polymer properties such as molecular weight, modulus, and others.
The limiting yield stress is equal to zero but apparent viscosity remains constant during water motion in plane radial crack at openness values of 30 and 35 pm, at 303 and 293 K temperatures, respectively, in both the first and second experiments series (Figs.
Therefore, due to significance of this subject, the objective of present study is to define some physiochemical (Brix, pH, acidity and DM) and rheological properties of grape juice in Iran (Urmia and Sabevar) such as measuring shear stress and shear rate in different temperatures, apparent viscosity, flow behavior index and activation energy of grape juice.
Effect of temperature and shear rate on apparent viscosity of cornstarch adhesives
The apparent viscosity and the consistency index increased with the addition of the hydrocolloids and the increase in their concentration.
An increase in milk heating temperature resulted in an increase in apparent viscosity of stirred yogurts (Lee and Lucey, 2006).
Furthermore, it is worth noting that the 1500 ppm AC-1 and 800 ppm AC-2 solutions have almost the same zero-shear viscosity, but due to the stronger shear-thinning character of the latter solution, the apparent viscosity of the AC-1 solution is larger than that of the AC-2 at high shear-rates (larger than 1 s-1).
This patented approach allows direct inline measurement of the apparent viscosity of a liquid--an ideal way to gauge product quality.
The emphasis is placed on applying a shear factor [lambda] for flowing suspensions in pipes instead of apparent viscosity [[mu].
A guide to bead density versus apparent viscosity is shown in Chart 2.
The apparent viscosity, shear rate and the yield values of the inks were measured in controlled stress mode on a Carrimed rheometer using the cone and plate method.
The instrument measures MFR and apparent viscosity (using either the controlled-rate or controlled-stress mode).