Results 31 to 40 of about 13,652 (264)
Mechanism of Vortices Appearance in the Taylor-Couette Flow System [PDF]
This work is devoted to study the Taylor-Couette flow at the early structuring stages. It is aimed to gain insight on the Taylor and Ekman vortices genesis mechanism since the first hints of presence detected at Ta=10-4. Simulations are carried out using
M. Khirennas +5 more
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Simulation of Viscoelastic Fluids: Couette—Taylor Flow [PDF]
We present a numerical scheme for viscoelastic flow based on a second-order central differencing method recently introduced in the context of incompressible Newtonian flow; the incompressibility constraint is treated with the projection method. We implement the new method on Couette-Taylor flow for a fluid governed by the Oldroyd-B constitutive ...
openaire +3 more sources
Paradoxical transitions to instabilities in hydromagnetic Couette-Taylor flows [PDF]
By methods of modern spectral analysis, we rigorously find distributions of eigenvalues of linearized operators associated with an ideal hydromagnetic Couette-Taylor flow. Transition to instability in the limit of vanishing magnetic field has a discontinuous change compared to the Rayleigh stability criterion for hydrodynamical flows, which is known as
Kirillov, O. N. +2 more
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Flow in a concentric annular passage with a rotating inner cylinder, which is called Taylor-Couette flow, is important in industrial applications, such as electric motor which requires not only effective cooling of rotating shaft but also saving power ...
Akihiro OHSAWA +2 more
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Numerical Study of the Effect of a Power-law Fluid Flow Structures on Levels of Mixing in a Taylor Couette Configuration [PDF]
This work is a numerical study on the effects of the flow structures of the power-law fluid between two concentric cylinders with an upward laminar axial flow on levels of mixing and mean residence time through the Taylor Couette system.
S. Khali, R. Nebbali
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Criterion for purely elastic Taylor-Couette instability in the flows of shear-banding fluids [PDF]
In the past twenty years, shear-banding flows have been probed by various techniques, such as rheometry, velocimetry and flow birefringence. In micellar solutions, many of the data collected exhibit unexplained spatio-temporal fluctuations.
Fardin, M. A. +5 more
core +4 more sources
Direct numerical simulations of turbulent Taylor-Couette flows are performed to investigate the effect of a traveling wave control on torque and heat transfer. In the Taylor-Couette flow, inner and outer cylinders are rotating and immobile, respectively,
Hiroya MAMORI +4 more
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Optimal Taylor-Couette flow: Radius ratio dependence [PDF]
Taylor-Couette flow with independently rotating inner (i) and outer (o) cylinders is explored numerically and experimentally to determine the effects of the radius ratio {\eta} on the system response. Numerical simulations reach Reynolds numbers of up to
Grossmann, Siegfried +7 more
core +2 more sources
Application of a Taylor-Couette Reactor in Homogeneous Catalysis
New developments of synthesis routes in homogeneous catalysis often require a precise control of the reaction conditions in order to achieve optimal results.
A. Behr, T. Farber
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Design method of a vertical screw conveyor based on Taylor–Couette–Poiseuille stable helical vortex
This article investigates gas–solid two-phase flow in a vertical screw conveyor and analyzes the distribution function of the circumferential velocity of particles in the radial direction.
Sun Xiaoxia, Meng Wenjun, Yuan yuan
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