pressure viscosity

[′presh·ər vi‚skäs·əd·ē]

(fluid mechanics)

Property of petroleum lubricating oils to increase in viscosity when subjected to pressure.

References in periodicals archive ?

Moreover, multivariable statistical analyses techniques have been used for predicting the pressure viscosity coefficient of lubricants using NMR experiments [13].

A number of studies have been carried out in the past on determining and establishing the dependency among different lubricant parameters since Barus established a relation between viscosity and pressure by introducing pressure viscosity coefficient "[alpha]" [14].

Correlation Study of Physicochemical, Rheological, and Tribological Parameters of Engine Oils

Jones, "Pressure viscosity measurement for several lubricants," ASLE Transactions, vol.

Asymptotic modeling of the thin film flow with a pressure-dependent viscosity

The viscometric technique reported here serves the dual purpose of generating useful high pressure viscosity data and detecting phase transitions that cause marked rheological changes in polymer solutions, especially at low polymer concentrations.

Low shear viscosity and crystallization in dilute solutions of polymers at high pressures: falling body viscometry of high molecular weight polyethylene solutions