Results 31 to 40 of about 13,652 (264)

Mechanism of Vortices Appearance in the Taylor-Couette Flow System [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
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
doaj   +1 more source

Simulation of Viscoelastic Fluids: Couette—Taylor Flow [PDF]

open access: yesJournal of Computational Physics, 1998
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]

open access: yesPhysical Review E, 2011
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
openaire   +4 more sources

Through-flow effects on Nusselt number and torque coefficient in Taylor-Couette-Poiseuille flow investigated by large eddy simulation

open access: yesJournal of Thermal Science and Technology, 2016
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
doaj   +1 more source

Numerical Study of the Effect of a Power-law Fluid Flow Structures on Levels of Mixing in a Taylor Couette Configuration [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
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
doaj   +1 more source

Criterion for purely elastic Taylor-Couette instability in the flows of shear-banding fluids [PDF]

open access: yes, 2011
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

Heat transfer enhancement and torque reduction by traveling wave-like blowing and suction in turbulent Taylor-Couette flow

open access: yesJournal of Thermal Science and Technology, 2021
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
doaj   +1 more source

Optimal Taylor-Couette flow: Radius ratio dependence [PDF]

open access: yes, 2013
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

open access: yesChemical Engineering Transactions, 2015
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
doaj   +1 more source

Design method of a vertical screw conveyor based on Taylor–Couette–Poiseuille stable helical vortex

open access: yesAdvances in Mechanical Engineering, 2017
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
doaj   +1 more source

Home - About - Disclaimer - Privacy