Results 41 to 50 of about 25,735 (213)

Transient growth of Ekman-Couette flow [PDF]

open access: yesPhysical Review E, 2014
7 pages, 9 ...
Shi, Liang   +2 more
openaire   +4 more sources

Transient Velocity And Steady State Entropy Generation In A Microfluidic Couette Flow Containing Charged Nano Particles

open access: yesInternational Journal of Applied Mechanics and Engineering, 2015
An analysis has been provided to determine the transient velocity and steady state entropy generation in a microfluidic Couette flow influenced by electro-kinetic effect of charged nanoparticles.
R.S.R. Gorla, B.J. Gireesha
doaj   +1 more source

A study of turbulence and interacting inertial modes in a differentially-rotating spherical shell experiment

open access: yes, 2016
We present a study of inertial modes in a differentially rotating spherical shell (spherical Couette flow) experiment with a radius ratio of $\eta = 1/3$. Inertial modes are Coriolis-restored linear wave modes which often arise in rapidly rotating fluids.
Harlander, Uwe   +2 more
core   +1 more source

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir   +6 more
wiley   +1 more source

Simple and Accurate Formulas for Flow-Curve Recovery from Couette Rheometer Data

open access: yesApplied Rheology, 2006
In Couette rheometry, most of the current flow-curve recovery algorithms require the explicit numerical differentiation of the measured angular velocity data. The exceptions and popular choices, because it avoids the need for a numerical differentiation,
De Hoog F. R., Anderssen R. S.
doaj   +1 more source

A direct numerical simulation display of the rotational frame preference of turbulence

open access: yesAIP Advances, 2023
An elementary observation of a laminar cylindrical Poiseuille–Couette flow profile reveals no distinction in the parabolic streamwise profile, from one without a cross-stream flow, in whatever reference frame the observation is made.
Samuel D. Dunstan
doaj   +1 more source

Large-scale instability in a sheared nonhelical turbulence: formation of vortical structures

open access: yes, 2007
We study a large-scale instability in a sheared nonhelical turbulence that causes generation of large-scale vorticity. Three types of the background large-scale flows are considered, i.e., the Couette and Poiseuille flows in a small-scale homogeneous ...
A. A. Townsend   +25 more
core   +1 more source

Azimuthal velocity profiles in Rayleigh-stable Taylor-Couette flow and implied axial angular momentum transport [PDF]

open access: yes, 2014
We present azimuthal velocity profiles measured in a Taylor-Couette apparatus, which has been used as a model of stellar and planetary accretion disks. The apparatus has a cylinder radius ratio of $\eta = 0.716$, an aspect-ratio of $\Gamma = 11.74$, and ...
Huisman, Sander G.   +5 more
core   +4 more sources

Magnetorotational instability of dissipative Couette flow [PDF]

open access: yesJournal of Fluid Mechanics, 2002
Axisymmetric stability of viscous resistive magnetized Couette flow is re-examined, with the emphasis on flows that would be hydrodynamically stable according to Rayleigh's criterion: opposing gradients of angular velocity and specific angular momentum. In this regime, magnetorotational instabilities (MRI) may occur.
Goodman, Jeremy, Ji, Hantao
openaire   +2 more sources

Polymer Stress‐Tensor Calculation for a Laminar Submerged Viscoelastic Jet Flow Using Different Constitutive Models

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This study presents an efficient method to compute polymer stress‐tensor components in viscoelastic laminar jet flows using models such as Oldroyd‐B, Giesekus, PTT, and FENE. By assuming a stationary and parallel flow, the methodology significantly reduces computational cost.
Rafael de Lima Sterza   +3 more
wiley   +1 more source

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