Results 91 to 100 of about 143 (128)

On relativistic ferrohydrodynamics

Reports on Mathematical Physics, 1984
This paper studies inviscid ferrofluids, i.e., magnetically polarizable fluids with zero viscosity, in the context of a general relativistic space-time with background metric of Lorentz signature. Included are consideration of the stress-energy tensor, relativistic hydrodynamics with heat conduction and fluid wave propagation.
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Hamiltonian formalism of equations of ferrohydrodynamics

Doklady Physics, 2009
The purpose of this work is to obtain the equations of ferrohydrodynamics using the system's Hamiltonian and Poisson brackets. Common for all models are the energy functional, the continuity equation, the adiabaticity conditions and the Maxwell equations for non-conducting liquids. Two particular models are investigated: the quasi-stationary Rosenzweig-
Sokolov, V. V., Tolmachev, V. V., Ehminov, P. A.   +2 more
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On the Couette-Taylor instability in ferrohydrodynamics

Journal of Colloid and Interface Science, 1987
Abstract A theory for the stabilizing influence of an axial external magnetic field on a magnetic colloid engaged in cylindrical Couette flow is presented. For the case of a narrow gap, analytical expressions which predict the magnetic field dependences of the critical wavelength and the critical Taylor number at the onset of cellular Taylor flow are
Peter J Stiles, Michael Kagan, Joseph B Hubbard   +2 more
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Ferrohydrodynamic torque-driven flows

Journal of Magnetism and Magnetic Materials, 1990
Abstract Ferrofluid motion driven by a travelling wave magnetic field can be in the same or opposite direction to the direction of wave propagation. A net time average body force on a ferrofluid is produced when there is a time phase lag between the ferrofluid magnetization M and the driving magnetic field H. With M and H not collinear, there is also
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Ferrohydrodynamics: Retrospective and Issues

2002
Two basic sets of hydrodynamic equations for magnetic colloids (so-called ferrofluids) are reviewed. Starting from the quasistationary ferrohydrodynamics, we then give a particular attention to an expanded model founded on the concept of internal rotation.
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Ferrohydrodynamics in Time-Varying Magnetic Fields

Materials: Processing, Characterization and Modeling of Novel Nano-Engineered and Surface Engineered Materials, 2002
Measurements of magnetic-field-induced ferrofluid flow and torque in uniform rotating magnetic fields are presented and compared to theoretical analyses in order to understand observed paradoxical behavior. The viscous torque from this fluid flow is measured using a cylindrical Couette viscometer, as a function of magnetic field amplitude, frequency ...
Carlos Rinaldi, June-Ho Lee, Adam D. Rosenthal, Thomas Franklin, Markus Zahn   +4 more
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The Hamilton equations of ferrohydrodynamics with the Landau–Lifshitz equation for magnetization

Russian Physics Journal, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sokolov, V. V., Fotov, K. N., Eminov, P. A.   +2 more
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Hybrid ferrohydrodynamic instability: Coexisting peak and labyrinthine patterns

Physical Review E, 2008
We present an experimental study of a different pattern-forming instability occurring when a ferrofluid droplet is immersed in a thin layer of a nonmagnetic fluid, and subjected to a uniform perpendicular magnetic field. The formation of intriguing interfacial structures is observed, and the development of a hybrid-type ferrohydrodynamic instability is
Ching-Yao, Chen, W-K, Tsai, José A, Miranda   +2 more
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Some exact solutions of the ferrohydrodynamics equations

Journal of Applied Mechanics and Technical Physics, 1979
The theoretical study of nonisothermal flows of magnetizable liquids presents serious matheical difficulties, which are intensified as compared to to the study of normal liquids by the necessity of simultaneous solution of both the hydrodynamics and Maxwell's equations, with corresponding boundary conditions for the magnetic field.
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Ferrohydrodynamic evaluation of rotational viscosity and relaxation in certain ferrofluids

Physical Review E, 2012
A significant effect of aggregation dynamics for aqueous ferrofluid (AF) and kerosene based ferrofluid (KF) using magnetic field dependent capillary viscosity and magneto-optical relaxation measurements is studied. For better comparison parameters of AF and KF are kept similar.
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