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Tuesday, August 4, 2020 | History

4 edition of Ordered and turbulent patterns in Taylor-Couette flow found in the catalog.

Ordered and turbulent patterns in Taylor-Couette flow

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Published by Plenum Press in New York .
Written in English

    Subjects:
  • Taylor vortices -- Congresses,
  • Fluid dynamics -- Congresses

  • Edition Notes

    Other titlesTaylor-Couette flow.
    Statementedited by C. David Andereck and F. Hayot.
    SeriesNATO ASI series., v. 297
    ContributionsAndereck, C. David., Hayot, F., North Atlantic Treaty Organization. Scientific Affairs Division., NATO Advanced Research Workshop on Ordered and Turbulent Patterns in Taylor-Couette Flow (1991 : Columbus, Ohio)
    Classifications
    LC ClassificationsQA925 .O73 1992
    The Physical Object
    Paginationxi, 357 p. :
    Number of Pages357
    ID Numbers
    Open LibraryOL1716043M
    ISBN 100306442388
    LC Control Number92018440

    A Taylor-Couette flow hemofilter, referred to as vortex flow plasmapheretic reactor (VFPR), has been designed to treat blood plasma with a fluidized-bed of small porous particles (∼micron).   The classic Taylor-Couette flow of non-magnetic fluid has been a computatio16 and experimen18,19 paradigm to investigate a variety of nonlinear and complex dynamical phenomena.

    The formation of turbulent patterns in plane Couette flow is investigated near the onset of transition, using numerical simulation in a very large domain of size h × 2 h × on a maximum observation time of 20 inertial units, the threshold for the appearance of sustained turbulent motion is Re c = ± 1. For Re c turbulent-banded patterns .   Chao and Quan () work can be considered as baseline for future flow studies, they worked on different experimental techniques for turbulent Rayleigh Benard convection and Taylor Couette flow. These experimental techniques are quite helpful for understanding the flow structure and flow characteristics [ 13 ].

    The phase dynamics of flows in the Taylor–Couette system have been studied by applying a forced modulation to the upper boundary of a large aspect ratio concentric cylinder system. In a one phase variable case, the Taylor vortex flow, the perturbations diffuse along the axial direction and the pattern’s response is well described by a simple diffusion model. Taylor–Couette flows have been widely studied in part due to the enhanced mixing performance from the variety of hydrodynamic flow states accessible. These process improvements have been demonstrated despite the traditionally limited injection mechanisms from the complexity of the Taylor–Couette geometry.


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Ordered and turbulent patterns in Taylor-Couette flow Download PDF EPUB FB2

Connections with open flows are being made. More complex fluids are used in some experiments. The vigor of the research going on in this particular example of nonequilibrium systems was very apparent at the NATO Advanced Research Workshop on "Ordered and Turbulent Patterns in Taylor­ Couette Flow," held in Columbus, Ohio, USA May ISBN: OCLC Number: Notes: "Proceedings of a NATO Advanced Research Workshop on Ordered and Turbulent Patterns in Taylor-Couette Flow, held May, in Columbus, Ohio"--Title page verso.

Ordered and turbulent patterns in Taylor-Couette flow / ed. by David Andereck and F. Hayot Date: Editeur / Publisher: New York [etc.]: Plenum Press, cop. Abstract. Intermittent turbulence, the coexistence of laminar and turbulent flow 1, is well known to exist in circular Couette flow when the two cylinders counter-rotate particular, the turbulent and laminar regions may organize into the Spiral Turbulence pattern (alternating regions of laminar and turbulent flow which wrap around the axis of the cylinders to form a Cited by: 5.

The effect of gas bubbles on Taylor–Couette flow patterns in the transition from laminar to weakly turbulent vortex flow is investigated by quasi-2D and 3D CFD simulation.

The CFD model is based on the Eulerian–Eulerian two-fluid approach with constitutive closures for inter-phase forces and liquid turbulence and validated by comparison. We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.

Abstract. The transition to turbulence in the Taylor Couette experiment has been extensively studied in the past by several groups. This flow with its simple geometry produces a large number of different flow patterns, depending on the gap radius ratio, the Reynolds numbers of the rotation of both cylinders and the flow history the case with the outer cylinder at rest.

Our experiments have revealed an unexpected array of bifurcation phenomena. 6 This paper will explain the techniques used to discover the bifurcations in the flow, present a bifurcation map of the Taylor-Couette system subject to a Coriolis force, and finally, discuss some of the more interesting features revealed by the map.

Abstract. Taylor-Couette flow subjected to a Coriolis force is a rich pattern-forming system. 1–5 The Coriolis force is applied by rotating a Couette apparatus so that the axis of rotation for the system is. orthogonal to the common axis of the cylinders (see figure 1).

This orientation produces a nonaxisymmetric Coriolis force through the interaction of the rotation of the system with the. and re-formation of near-wall coherent structures in turbulent Couette flow, Duguet et al.

()analysed turbulent patterns near transition, Barkley and Tuckerman () studied specifically a –laminar banded pattern in plane Couette flowturbulent photographed in Taylor-Couette flow (Prigent et al., ).

The Twente turbulent Taylor–Couette (T 3 C) facility experiment, was selected as a test case to validate our model for single phase flow. This choice was driven by the existence of plentiful and detailed experimental data for the T 3 C reactor. A schematic view of the T 3 C system is shown in Fig.

1 and geometric parameters are reported in Table bubbly Taylor–Couette flow. Genre/Form: Electronic books: Additional Physical Format: Print version: Andereck, C. David. Ordered and Turbulent Patterns in Taylor-Couette Flow. Boston, MA. Randall Tagg, A Guide to Literature Related to the Taylor-Couette Problem, Ordered and Turbulent Patterns in Taylor-Couette Flow, /_32, (), ().

Crossref E. Philip Horwitz, Mark L. Dietz, Dan E. Fisher, SREX: A NEWPROCESS FOR THE EXTRACTION AND RECOVERY OF STRONTIUM FROM ACIDIC NUCLEAR WASTE. A turbulent–laminar banded pattern in plane Couette flow is studied numerically. This pattern is statistically steady, is oriented obliquely to the streamwise direction, and has a very large wavelength relative to the gap.

The mean flow, averaged in time and in the homogeneous direction, is analysed. from book Advances in Turbulence XII (pp) Order parameter in laminar-turbulent patterns. first observed in counter-rotating Taylor-Couette flow in. Ordered and Turbulent Patterns in Taylor-Couette Flow: C.

David Andereck, F. Hayot: Books - ews: 1. 1-Turbulent flows are studied by studying flow patterns, the flow pattern is captured by knowing the velocity components at each measured point. Each flow problem has its own characteristic pattern, this leads to parameters that are vital to calculate for the studied case, example for jet flows is energy production and energy dissipation, for Reviews: Ordered and Turbulent Patterns in Taylor-Couette Flow.

Book. was very apparent at the NATO Advanced Research Workshop on "Ordered and Turbulent Patterns in Taylor­ Couette Flow," held in. The transition to turbulence in pipe flow does not follow the scenario familiar from Rayleigh-Benard or Taylor-Couette flow since the laminar profile is stable against infinitesimal perturbations for all Reynolds numbers.

Moreover, even when the flow speed is high enough and the perturbation sufficiently strong such that turbulent flow is established, it can return to the. “Low-Dimensional Spectral Truncations for Taylor-Couette Flow”, K.T.

Coughlin, P.S. Marcus, featured in Ordered and Turbulent Patterns in Taylor-Couette Flow, with ed. David Andereck, F. Hayot, volume of the NATO ASI Series, pp.

published by Springer US,print ISBNarticle DOI: /_3. This is the first DNS study of the turbulent flow in a Taylor–Couette system using a multidomain decomposition technique.

• Numerical benchmark of LES and RANS models in a rotating system. • Turbulent angular momentum scales .Measurements have been made of the Couette flow in the annular space between concentric cylinders with a radius ratio ofthe outer cylinder being held stationary and the inner one rotated at speeds to give Taylor numbers in the range × 10 4 − × l0 6 times the critical value for first instability of the steady viscous flow.

Mean velocities have been measured both .Ordered and Turbulent Patterns in Taylor-Couette Flow, () On the stability of circular Couette flow with radial heating.

Journal of Fluid Mechanics