Homogeneous Instability in Shear Flow of Nematics—Effect of an Oblique Magnetic Field

1984 ◽  
Vol 116 (1-2) ◽  
pp. 1-19 ◽  
Author(s):  
U. D. Kini
Keyword(s):  
Magnetic Field ◽  
Shear Flow ◽  
Oblique Magnetic Field

scholarly journals Sheath size and Child–Langmuir law in one dimensional bounded plasma system in the presence of an oblique magnetic field: PIC results

2021 ◽  
Vol 28 (8) ◽  
pp. 083501
Author(s):  
J. Moritz ◽  
S. Heuraux ◽  
E. Gravier ◽  
M. Lesur ◽  
F. Brochard ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Plasma System ◽  
One Dimensional ◽  
Bounded Plasma ◽  
Oblique Magnetic Field

scholarly journals Dynamics and rheology of a super-paramagnetic chain suspension under the combined effect of a shear flow and a rotating magnetic field.

Soft Matter ◽  
2021 ◽  
Author(s):  
Emanuele Rossi ◽  
Jose Antonio Ruiz-Lopez ◽  
Adolfo Vazquez-Quesada ◽  
Marco Ellero
Keyword(s):  
Magnetic Field ◽  
Shear Flow ◽  
Newtonian Fluid ◽  
Combined Effect ◽  
Rotating Magnetic Field ◽  
Paramagnetic Beads

This study presents an analysis of the dynamics of a single and multiple chains of spherical super-paramagnetic beads suspended in a Newtonian fluid under the combined effect of an external...

scholarly journals Magnetoviscosity of a Magnetic Fluid Based on Barium Hexaferrite Nanoplates

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1870
Author(s):  
Dmitry Borin ◽  
Robert Müller ◽  
Stefan Odenbach
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Magnetic Nanoparticles ◽  
External Magnetic Field ◽  
Shear Flow ◽  
Magnetic Fluid ◽  
Barium Hexaferrite ◽  
Dipole Interaction ◽  
Field Dependent ◽  
Fluid Behaviour

This paper presents the results of an experimental study of the influence of an external magnetic field on the shear flow behaviour of a magnetic fluid based on barium hexaferrite nanoplates. With the use of rheometry, the magnetoviscosity and field-dependent yield-stress in the fluid are evaluated. The observed fluid behaviour is compared to that of ferrofluids with magnetic nanoparticles having high dipole interaction. The results obtained supplement the so-far poorly studied topic of the influence of magnetic nanoparticles’ shape on magnetoviscous effects. It is concluded that the parameter determining the observed magnetoviscous effects in the fluid under study is the ratio V2/l3, where V is the volume of the nanoparticle and l is the size of the nanoparticle in the direction corresponding to its orientation in the externally applied magnetic field.

scholarly journals Renormalized theory of the ion cyclotron turbulence in magnetic field-aligned plasma shear flow

2009 ◽  
Vol 16 (1) ◽  
pp. 012305 ◽  
Author(s):  
V. S. Mikhailenko ◽  
V. V. Mikhailenko ◽  
K. N. Stepanov ◽  
N. A. Azarenkov
Keyword(s):  
Magnetic Field ◽  
Shear Flow ◽  
Ion Cyclotron

Influence of oblique magnetic field on electron cross-field transport in a Hall effect thruster

2015 ◽  
Vol 22 (4) ◽  
pp. 043511 ◽  
Author(s):  
Jan Miedzik ◽  
Serge Barral ◽  
Dariusz Daniłko
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Hall Effect Thruster ◽  
Oblique Magnetic Field

scholarly journals Stability analysis of magnetic fluids in the presence of an oblique field and mass and heat transfer

2020 ◽  
Vol 330 ◽  
pp. 01035
Author(s):  
Rabah Djeghiour ◽  
Bachir Meziani
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Magnetic Fluids ◽  
Physical Parameters ◽  
Stability Diagrams ◽  
Stability And Instability ◽  
Mass And Heat Transfer ◽  
Model Equations ◽  
The Stability ◽  
Oblique Magnetic Field

In this paper, we investigate an analysis of the stability of a basic flow of streaming magnetic fluids in the presence of an oblique magnetic field is made. We have use the linear analysis of modified Kelvin-Helmholtz instability by the addition of the influence of mass transfer and heat across the interface. Problems equations model is presented where nonlinear terms are neglected in model equations as well as the boundary conditions. In the case of a oblique magnetic field, the dispersion relation is obtained and discussed both analytically and numerically and the stability diagrams are also obtained. It is found that the effect of the field depends strongly on the choice of some physical parameters of the system. Regions of stability and instability are identified. It is found that the mass and heat transfer parameter has a destabilizing influence regardless of the mechanism of the field.

Orientational Distributions of a Ferromagnetic Spherocylinder Particle in a Simple Shear Flow

2002 ◽  
Author(s):  
Masayuki Aoshima ◽  
Akira Satoh ◽  
Geoff N. Coverdale ◽  
Roy W. Chantrell
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Shear Flow ◽  
Flow Field ◽  
Simple Shear ◽  
Applied Magnetic Field ◽  
Spherical Particles ◽  
Simple Shear Flow ◽  
Microstructure Formation ◽  
Base Liquid

A ferrofluid is a suspension of ferromagnetic spherical particles in a base liquid (1), and is well known as a functional fluid which responds to an external magnetic field to give a large increase in the viscosity. Such a significant increase in the viscosity is due to the fact that chain-like clusters are formed owing to magnetostatic interactions between particles in an applied magnetic field. The microstructure formation offers a large resistance to a flow field that gives rise to a significant increase of the apparent viscosity (2).

Sign in / Sign up

Export Citation Format

Share Document