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Experimental Investigation On Turbulent Transport In Taylor Couette Flow
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Book Synopsis Experimental investigation on turbulent transport in Taylor-Couette flow by : Sebastian Merbold
Download or read book Experimental investigation on turbulent transport in Taylor-Couette flow written by Sebastian Merbold and published by Cuvillier Verlag. This book was released on 2019-08-27 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: ”Experimentelle Untersuchung des turbulenten Transports in der Taylor-Couette Strömung” Ein berühmtes Beispiel für Stromungsinstabilitaten kommt zwischen zwei konzentrischen, unabhängig rotierenden Zylindern vor. Drehimpuls wird im Falle einer differentiellen Rotation zwischen den Zylindern transportiert. Die so genannte Taylor-Couette (TC) Strömung ist von grundlegender Bedeutung für Transportprozesse in rotierenden Systemen, wie der Erdatmosphäre und Akkretionsscheiben oder industriellen Anwendungen, wie Gleitlagerung, Seperation oder Mischungen. Ein besseres Verständnis der Transportprozesse und turbulenten Strukturen sowie eine einheitliche Beschreibung der komplexen Aspekte sind Aufgaben groser Tragweite vieler Forschungsgebiete. Die Absicht dieser Arbeit ist die experimentelle Untersuchung der turbulenten Taylor-Couette Strömung des Radienverhältnissees η = 0.5 bei hohen Scher-Reynoldszahlen und der Rotation des Innen- sowie Ausenzylinders.
Book Synopsis Angular momentum transport and pattern formation in medium- and wide-gap turbulent Taylor-Couette flow by : Andreas Froitzheim
Download or read book Angular momentum transport and pattern formation in medium- and wide-gap turbulent Taylor-Couette flow written by Andreas Froitzheim and published by Cuvillier Verlag. This book was released on 2019-08-26 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent Taylor-Couette flow, where the fluid is confined by two coaxial and independently rotating cylinders, is experimentally investigated within this thesis for medium and wide gaps. To reveal the influence of flow patterns on the angular momentum transport, direct torque measurements, flow visualizations and particle image velocimetry are performed in two different facilities. For the largely unexplored radius ratio regime of η = 0.357, the directly measured torque features a transition as a function of shear, which is connected to the capacity of the outer cylinder to emit small-scale plumes. When the cylinders rotate slightly in counter-direction, a maximum in torque occurs at μmax = -0.123, which is induced by the formation of large-scale Taylor vortices. The contribution of these vortices to the overall momentum transport clearly exceeds the contribution of the turbulent fluctuations for η = 0.5. Furthermore, the large-scale Taylor rolls are driven by small-scale plumes and feature azimuthally traveling waves for η = 0.714. Accordingly, the angular momentum transport in medium and wide-gap turbulent Taylor-Couette flow is determined by the interaction of turbulence and flow patterns of different scales.
Book Synopsis An Experimental Investigation of Plane Turbulent Couette Flow with Zero Net Flow by : Robert Joel Barnett
Download or read book An Experimental Investigation of Plane Turbulent Couette Flow with Zero Net Flow written by Robert Joel Barnett and published by . This book was released on 1978 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Plane Turbulent Couette Flow with Adverse Pressure Gradients by : Larry Joe Huey
Download or read book An Experimental Investigation of Plane Turbulent Couette Flow with Adverse Pressure Gradients written by Larry Joe Huey and published by . This book was released on 1972 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Flows written by G. Biswas and published by CRC Press. This book was released on 2002 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book allows readers to tackle the challenges of turbulent flow problems with confidence. It covers the fundamentals of turbulence, various modeling approaches, and experimental studies. The fundamentals section includes isotropic turbulence and anistropic turbulence, turbulent flow dynamics, free shear layers, turbulent boundary layers and plumes. The modeling section focuses on topics such as eddy viscosity models, standard K-E Models, Direct Numerical Stimulation, Large Eddy Simulation, and their applications. The measurement of turbulent fluctuations experiments in isothermal and stratified turbulent flows are explored in the experimental methods section. Special topics include modeling of near wall turbulent flows, compressible turbulent flows, and more.
Book Synopsis Advances in Turbulence XII by : Bruno Eckhardt
Download or read book Advances in Turbulence XII written by Bruno Eckhardt and published by Springer Science & Business Media. This book was released on 2010-03-17 with total page 973 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the communications presented at the EUROMECH European Turbulence Conference ETC12, held in Marburg in September 2009. The topics covered by the meeting include: Acoustics of turbulent flows, Atmospheric turbulence, Control of turbulent flows, Geophysical and astrophysical turbulence, Instability and transition, Intermittency and scaling, Large eddy simulation and related techniques, Lagrangian aspects, MHD turbulence, Reacting and compressible turbulence, Transport and mixing, Turbulence in multiphase and non-Newtonian flows, Vortex dynamics and structure, formation, Wall bounded flows.
Book Synopsis An Experimental Study of Turbulence Levels Generated with a Taylor-Couette Apparatus by : Margaret Elizabeth Solomon
Download or read book An Experimental Study of Turbulence Levels Generated with a Taylor-Couette Apparatus written by Margaret Elizabeth Solomon and published by . This book was released on 1995 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ordered and Turbulent Patterns in Taylor-Couette Flow by : C. David Andereck
Download or read book Ordered and Turbulent Patterns in Taylor-Couette Flow written by C. David Andereck and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seldom does a physical system, particularly one as apparently simple as the flow of a Newtonian fluid between concentric rotating cylinders, retain the interest of scientists, applied mathematicians and engineers for very long. Yet, as this volume goes to press it has been nearly 70 years since G. I. Taylor's outstanding experimental and theoretical study of the linear stability of this flow was published, and a century since the first experiments were performed on rotating cylinder viscometers. Since then, the study of this system has progressed enormously, but new features of the flow patterns are still being uncovered. Interesting variations on the basic system abound. 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 22-24, 1991. A primary goal of this ARW was to bring together those interested in pattern formation in the classic Taylor Couette problem with those looking at variations on the basic system and with those interested in related systems, in order to better define the interesting areas for the future, the open questions, and the features common (and not common) to closed and open systems. This volume contains many of the contributions presented during the workshop.
Book Synopsis Advances in Turbulence XII by : Bruno Eckhardt
Download or read book Advances in Turbulence XII written by Bruno Eckhardt and published by Springer. This book was released on 2016-09-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lagrangian aspects.- Lagrangian modeling and properties of particles with inertia.- Effect of Faxén forces on acceleration statistics of material particles in turbulent flow.- Lagrangian analysis of turbulent convection.- Linear and angular dynamics of an inertial particle in turbulence.- Collision rate between heavy particles in a model turbulent flow.- From cloud condensation nuclei to cloud droplets: a turbulent model.- Lagrangian statistics of inertial particles in turbulent flow.- Lagrangian statistics of two–dimensional turbulence in a square container.- Measurement of Lagrangian Particle Trajectories by Digital in-line Holography.- 3-D Particle Tracking Velocimetry (PTV) in gas flows using coloured tracer particles.- Two-particle dispersion in 2D inverse cascade turbulence and its telegraph equation model.- Numerical simulations of particle dispersion in stratified flows.- Instability and Transition.- Experimental study of the von Kármán flow from = 10 to 10: spontaneous symmetry breaking and turbulent bifurcations.- Flow reversals in a vertical channel.- Linear Instability of Streamwise Corner Flow.- DNS of turbulent plane Couette flow with emphasis on turbulent stripe.- Geometry of state space in plane Couette flow.- Linear and nonlinear instabilities of sliding Couette flow.- Localization in plane Couette edge dynamics.- Nonlinear optimal perturbations in plane Couette flow.- Order parameter in laminar-turbulent patterns.- Pattern formation in low Reynolds number plane Couette flow.- Quasi-stationary and chaotic convection in low rotating spherical shells.- Linear stability of 2D rough channels.- Transient turbulent bursting in enclosed flows.- On New Localized Vortex Solutions in the Couette-Ekman Layer.- Shear instabilities in Taylor-Couette flow.- Particle Tracking Velocimetry in Transitional Plane Couette Flow.- Experimental study of coherent structures in turbulent pipe flow.- Forced localized turbulence in pipe flows.- From localized to expanding turbulence.- Influence of test-rigs on the laminar-to-turbulent transition of pipe flows.- Interaction of turbulent spots in pipe flow.- Large-scale transitional dynamics in pipe flow.- Nonlinear coherent structures in a square duct.- Quantitative measurement of the life time of turbulence in pipe flow.- Experimental investigation of turbulent patch evolution in spatially steady boundary layers.- Interaction of noise disturbances and streamwise streaks.- Linear generation of multiple time scales by 3D unstable perturbations.- Convection at very high Rayleigh number: signature of transition from a micro-thermometer inside the flow.- Estimating local instabilities for irregular flows in the differentially heated rotating annulus.- Search for the “ultimate state” in turbulent Rayleigh-Bénard convection.- Rayleigh–Taylor instability in two dimensions and phase-field method.- Split energy cascade in quasi-2D turbulence.- Stabililty and laminarisation of turbulent rotating channel flow.- The vortical flow pattern exhibited by the channel flow on a rotating system just past transition under the influence of the Coriolis force.- Transient evolution and high stratification scaling in horizontal mixing layers.- Control of turbulent flows.- Toward cost-effective Control of Wall Turbulence for Skin Friction Drag Reduction.- Active control of turbulent boundary layer using an array of piezo-ceramic actuators.- Flat plate turbulent boundary-layer control using vertical LEBUs.- Estimation of the spanwise wall shear stress based on upstream information for wall turbulence control.- Interactions between vortex generators and a flat plate boundary layer. Application to the control of separated flows..- Modulated global mode of a controlled wake.- Swirl effects in turbulent pipe flow.- Control of an axisymmetric turbulent wake by a pulsed jet.- Direct Numerical Simulations of turbulent mixed convection in enclosures with heated obstacles.-
Book Synopsis Advances in Turbulence XI by : J. M. L. M. Palma
Download or read book Advances in Turbulence XI written by J. M. L. M. Palma and published by Springer Science & Business Media. This book was released on 2008-01-08 with total page 825 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the communications presented at the ETC 11, the EUROMECH European Turbulence conference held in 2007 in Porto. The scientific committee has chosen the contributions out of the following topics: Acoustics of turbulent flows; Atmospheric turbulence; Control of turbulent flows; Geophysical and astrophysical turbulence; Instability and transition; Intermittency and scaling; Large eddy simulation and related techniques; MHD turbulence; Reacting and compressible turbulence; Transport and mixing; Turbulence in multiphase and non-Newtonian flows; Vortex dynamics and structure formation; Wall bounded flows.
Book Synopsis Preliminary Experimental Investigation of Effect of Free-stream Turbulence on Turbulent Boundary-layer Growth by : S. J. Kline
Download or read book Preliminary Experimental Investigation of Effect of Free-stream Turbulence on Turbulent Boundary-layer Growth written by S. J. Kline and published by . This book was released on 1960 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Study of Plane Turbulent Couette Flow by : Henry Frederick Johnson
Download or read book An Experimental Study of Plane Turbulent Couette Flow written by Henry Frederick Johnson and published by . This book was released on 1965 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction To Turbulence by : Paul A. Libby
Download or read book An Introduction To Turbulence written by Paul A. Libby and published by CRC Press. This book was released on 1996-10-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with a description of turbulence, its various manifestations, and a brief history of study, this text also incorporates modern perspectives on turbulence. The text also covers such topics as intermittency and the resultant conditional sampling and averaging of turbulent flows, the role of large scale computation of the fundamental equations of fluid mechanics in providing information on variables, and asymptotic methods which are used to expose important features of turbulent flows. Meaningful exercises are included in every section.
Book Synopsis Fundamental Problematic Issues in Turbulence by : Albert Gyr
Download or read book Fundamental Problematic Issues in Turbulence written by Albert Gyr and published by Birkhäuser. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of contributions on a variety of mathematical, physical and engineering subjects related to turbulence. Topics include mathematical issues, control and related problems, observational aspects, two- and quasi-two-dimensional flows, basic aspects of turbulence modeling, statistical issues and passive scalars.
Book Synopsis Experimental Investigation of Turbulent Flow Around a Strut-endwall Configuration by : Peter Sen Poon Chang
Download or read book Experimental Investigation of Turbulent Flow Around a Strut-endwall Configuration written by Peter Sen Poon Chang and published by . This book was released on 1988 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigations Into the Transitions to Turbulence in Newtonian and Drag-reducing Polymeric Taylor-Couette Flows by : Cari Suzanne Dutcher
Download or read book Experimental Investigations Into the Transitions to Turbulence in Newtonian and Drag-reducing Polymeric Taylor-Couette Flows written by Cari Suzanne Dutcher and published by . This book was released on 2009 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
