Results 251 to 260 of about 191,627 (301)

The Stability of Oscillatory Hagen-Poiseuille Flow

Journal of Applied Mechanics, 1986
The linear stability theory of the nonzero mean, sinusoidally oscillating flow in a tube of circular cross section is examined. It is found that the relevant axisymmetric disturbances in the oscillatory flow are more stable (i.e., have larger decay rates) than the axisymmetric disturbances of the mean flow alone.
Tozzi, J. T., von Kerczek, C. H.
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Oscillatory Magnetogasdynamics Slip Flow in a Microchannel

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010
The problem of pressure-driven magnetogasdynamic (MGD) slip flow with small rarefaction through a long microchannel is considered. The flow is driven by a steady or oscillatory pressure gradient. The study of MGD flows in microchannels is of interest since they occur in many electromagnetic microscale devices. In obtaining the microfluidic solutions in
Ramesh K. Agarwal, L. Chusak
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Oscillatory Granular Flows

1998
An experimental device has been used to examine the behavior of granular materials under vertical, horizontal and combined bi-axial vibrations. Different container geometries were used with glass spheres, millet and lentils as granular media. Frontal and lateral visualization of the flow was made possible with high-speed video cameras.
J. James, G. Joseph, A. Magaña, B. Mena
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Oscillatory Flow Theory

2010
The pressure-flow relation for steady flow, where only frictional losses are considered (resistance, law of Poiseuille), and the relation between oscillatory or pulsatile pressure and flow when only blood mass (inertance) is taken into consideration, are simplifications of reality.
Nicolaas Westerhof, Nikolaos Stergiopulos, Mark I. M. Noble   +2 more
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Transport in oscillatory flows

2008
We examine the degree to which the transport of a passive scalar contaminant is enhanced by an oscillatory cellular flow. The enhancement is found to depend on the Peclet number Pe and on the ratio η of the oscillation frequency to the shear rate.
W. J. Merryfield, E. Knobloch
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Oscillatory line singularities of stokes' flows

International Journal of Engineering Science, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Avudainayagam, A., Geetha, J.
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Concentration effects in oscillatory blood flow

Biorheology, 1969
A continuum model of fluid suspensions is applied to the problem of unsteady tube flow of a fluid in which deformations of suspended particles are negligible. An expression is obtained for the volumetric flow rate as a function of suspension concentration.
K A, Kline, S J, Allen
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The inception of sheet flow in oscillatory flow

Ocean Engineering, 1998
Abstract A simple model is developed to study the inception of sheet flow in oscillatory flow based on the available experimental data. The inception of sheet flow in oscillatory flow is well defined by the simple model: A / d = KA 2 ω / ν + B , where A is the semi-excursion of wave orbital motion near the bed, d is the grain size, ω is the ...
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Reconfiguration of elastic blades in oscillatory flow

Journal of Fluid Mechanics, 2018
When subjected to a steady cross-flow, the deformation of flexible blades is known to result in the alleviation of the internal stresses in comparison to rigid structures. In the field of biomechanics, the flow-induced deformations of flexible structures leading to stress reduction have been often referred to as ‘reconfiguration’ in order to highlight ...
Tristan Leclercq, Emmanuel de Langre
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Stochastic resonance for dispersion in oscillatory flows

Physical Review A, 1991
We discuss the dispersion of particles suspended in time-periodic flows. It is found that this dispersion becomes maximal if the stochastic process describing the intrinsic random motion of the suspended particles is in ``resonance'' with the time-periodic flow.
, Claes, , Van den Broeck C
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