Results 211 to 220 of about 13,652 (264)

Vortex pairs in viscoelastic Couette-Taylor flow

Physical Review E, 2001
In experiments on dilute polymers between rotating cylinders Groisman and Steinberg [Phys. Rev. Lett. 78, 1460 (1997)] observed the formation of vortices that were not equidistantly spaced but rather paired up in what they called "diwhirls." We calculate these states within an Oldroyd-B model with parameters adapted to the experiment and find good ...
M, Lange, B, Eckhardt
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Couette-Taylor Flow in a Dilute Polymer Solution

Physical Review Letters, 1996
We present experimental evidence of the striking influence of small additions of high molecular weight polymers on stability and pattern selection in Couette-Taylor flow. Two novel oscillatory flow patterns were observed. One of them is essentially due to the fluid elasticity. The other results from inertial instability modified by the elasticity.
, Groisman, , Steinberg
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Frictional drag reduction in bubbly Couette–Taylor flow

Physics of Fluids, 2008
Frictional drag reduction due to the presence of small bubbles is investigated experimentally using a Couette–Taylor flow system; i.e., shear flow between concentric cylinders. Torque and bubble behavior are measured as a function of Reynolds number up to Re=5000 while air bubbles are injected constantly and rise through an array of vortical cells ...
Murai, Yuichi, Oiwa, Hiroshi, Takeda, Yasushi   +2 more
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Strange attractors in weakly turbulent Couette-Taylor flow

Physical Review A, 1987
An experiment is conducted on the transition from quasi-periodic to weakly turbulent flow of a fluid contained between concentric cylinders with the inner cylinder rotating and the outer cylinder at rest. Power spectra, phase-space portraits, and circle maps obtained from velocity time-series data indicate that the nonperiodic behavior observed is ...
, Brandstater, , Swinney
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Scalings and structures in turbulent Couette-Taylor flow

Physical Review E, 2001
The scaling of velocity structure functions in Couette-Taylor flow [Lewis and Swinney, Phys. Rev. E 59, 5457 (1999)] is revisited to obtain more accurate values of the scaling exponents for the Reynolds number range investigated, 12,000 to 540,000 (Taylor Reynolds numbers ...
Z S, She, K, Ren, G S, Lewis, H L, Swinney   +3 more
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Numerical Simulation of Couette–Taylor–Poiseuille Two-Phase Flow

Lobachevskii Journal of Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Transition to shear-driven turbulence in Couette-Taylor flow

Physical Review A, 1992
Turbulent flow between concentric cylinders is studied in experiments for Reynolds numbers 800R1.23\ifmmode\times\else\texttimes\fi{}${10}^{6}$ for a system with radius ratio \ensuremath{\eta}=0.7246. Despite predictions for the torque scaling as a power law of the Reynolds number, high-precision torque measurements reveal no Reynolds-number range with
, Lathrop, , Fineberg, , Swinney
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Transient Growth in Exactly Counter-Rotating Couette-Taylor Flow

Theoretical and Computational Fluid Dynamics, 2002
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Hristova, Hristina, Roch, Sébastien, Schmid, Peter J., Tuckerman, Laurette S.   +3 more
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Bubble capture and migration in Couette-Taylor flow

Experiments in Fluids, 1999
Bubble capture and migration under the effect of organized structures in weak turbulent Couette–Taylor flow between two concentric cylinders, the inner one rotating, has been investigated. Bubbles generated at the free surface for large enough angular velocities are sucked into the flow by the upper organized structures. Then they migrate progressively
Djeridi, H., Favé, J.-F., Billard, J.-Y., Fruman, D.   +3 more
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Experimental Study on Oscillatory Couette-Taylor Flows Behaviour

Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, 2013
In the simplest and original case of study of the Taylor–Couette TC problems, the fluid is contained between a fixed outer cylinder and a concentric inner cylinder which rotates at constant angular velocity. Much of the works done has been concerned on steady rotating cylinder(s) i.e.
Emna Berrich, Fethi Aloui, Jack Legrand
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