slip flow


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slip flow

[′slip ′flō]
(fluid mechanics)
A situation in which the mean free path of a gas is between 1 and 65% of the channel diameter; the gas layer next to the channel wall assumes a velocity of slip past the liquid, known as slip flow.
References in periodicals archive ?
Thus, the slip velocity was obtained directly from the velocity profiles and the melt temperature was measured at the die exit under slip and no slip flow conditions.
To the best of our knowledge, considerably less work has been done concerning the combined effect of Hall current and Soret effect on chemically reactive magnetomicropolar fluid flow incorporating the effect of rotation in slip flow regime in the presence of radiation and heat absorption.
The new Cyclone is able to produce nanofibers with diameters averaging 500 nanometers and below, with a very tight standard distribution that ensures uniform slip flow, barrier or absorption, among other properties and features a proprietary design that uniformly deposits the nanofibers across its 1.
Slip flow is the drag force that occurs on a small fiber, because "the molecular movements of the air molecules are significant in .
To illustrate the effect of slip on fill percentage, we compare the flow front for a slip length of [delta] = 10 [micro]m with the no slip flow front, using the same inlet pressure of 2.
For the materials here examined, following the approach proposed by Kalika and Denn (10), based on the Mooney analysis (23), it has been estimated that in the "wavy" fracture region the slip flow rate varied on average between 60 and 85% of the imposed flow rate, in dependence on material and temperature considered.
It must be remembered that the motor will exhibit slip flow, qm, whether it is driven hydraulically as a motor, or mechanically as a pump.
Finally, Perez-Gonzalez [18] showed that there is indeed an electric charge in the sharkskin regime of LLDPE, but it is smaller in magnitude as compared with that measured under true slip flow for comparable shear rates.
Thus, it is directly incorporated in the slip flow model for modeling the warpage.
The yield stress thus obtained is the stress threshold at which shear flow becomes comparable with slip flow.
For combined shear and slip flow, the same equations apply as for sticking flow, but [[eta].