Visualization of clustering on nonmagnetic and ferromagnetic particles in magnetic fluids

1999 ◽  
Author(s):  
Tatsuo Sawada ◽  
Hiroshiga Kikura ◽  
Gentaro Yamanaka ◽  
Mitsuo Matsuzaki ◽  
Masanori Aritomi ◽  
...  
Keyword(s):  
Magnetic Fluids ◽  
Ferromagnetic Particles

scholarly journals ON SOME FUČÍK TYPE PROBLEM WITH CUBIC NONLINEARITY ADI APPROACH TO THE PARTICLE DIFFUSION PROBLEM IN MAGNETIC FLUIDS

2011 ◽  
Vol 16 (1) ◽  
pp. 62-71 ◽  
Author(s):  
V. Polevikov ◽  
L. Tobiska
Keyword(s):  
Neumann Boundary ◽  
Magnetic Fluids ◽  
Diffusion Problem ◽  
Second Order ◽  
Particle Diffusion ◽  
Type Problem ◽  
Cubic Nonlinearity ◽  
Order Accuracy ◽  
Second Order In Time ◽  
Ferromagnetic Particles

The present study is devoted to the development of an ADI approach to simulate two-dimensional time-dependent diffusion process of ferromagnetic particles in magnetic fluids. Specific features of the problem are the Neumann boundary conditions. We construct an ADI scheme of formally second order accuracy approximation in time and space. It is proved that the scheme is absolutely stable and it has the accuracy in the energy norm of the second order in time and the order 3/2 in space. The numerical results of a test problem indicate that the convergence rate in space is of the second order as well.

Thermal behavior and cluster formation of ferromagnetic particles in magnetic fluids

2002 ◽  
Vol 14 (1-4) ◽  
pp. 443-446 ◽  
Author(s):  
Toshihide Tachibana ◽  
Hiroshige Kikura ◽  
Mitsuo Matsuzaki ◽  
Gentaro Yamanaka ◽  
Masanori Aritomi ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Cluster Formation ◽  
Magnetic Fluids ◽  
Ferromagnetic Particles

Use of the photoacoustic spectroscopy in the investigation of biocompatible magnetic fluids

2005 ◽  
Vol 125 ◽  
pp. 27-30 ◽  
Author(s):  
J. G. Santos ◽  
L. B. Silveira ◽  
A. C. Oliveira ◽  
P. C. Morais
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Magnetic Fluids

Magnetic fluids

1974 ◽  
Vol 112 (3) ◽  
pp. 427 ◽  
Author(s):  
M.I. Shliomis
Keyword(s):  
Magnetic Fluids

COMPLEX SUSCEPTIBILITY OF MAGNETIC FLUIDS: EXPLORING THE ROLE OF HYDRODYNAMICS

2019 ◽  
Author(s):  
Andrey Barbosa Guimarães ◽  
Francisco Ricardo Cunha ◽  
Rafael Gontijo
Keyword(s):  
Magnetic Fluids ◽  
Complex Susceptibility

The concentration and size distribution of airborne ferromagnetic particles

Tellus ◽  
1972 ◽  
Vol 24 (6) ◽  
pp. 561-567 ◽  
Author(s):  
Endre Wirth ◽  
Franco Prodi
Keyword(s):  
Size Distribution ◽  
Ferromagnetic Particles

INFLUENCE OF MAGNETIC NANOPARTICLES ON ACOUSTIC ATTENUATION IN LIQUIDS

Akustika ◽  
2020 ◽  
pp. 8-13
Author(s):  
Štefan Hardoň ◽  
Jozef Kúdelčík
Keyword(s):  
Magnetic Nanoparticles ◽  
Heat Exchangers ◽  
Magnetic Fluids ◽  
Magnetic Flux Density ◽  
Acoustic Attenuation ◽  
Cooling Systems ◽  
Practical Applications ◽  
Acoustic Spectroscopy ◽  
Aggregation Processes ◽  
Diagnostics And Therapy

Magnetic fluids with nanoparticles dispersed in water or oils offer attractive applications in biomedicine and industry. Biocompatible magnetic fluids are used for diagnostics and therapy in medical applications, in pharmacy, and biosensors. Application of ferrofluids is expanding into energy conservation, faster and efficient cooling, and hence better performance in a wide variety of practical applications (in heat exchangers, mainly in micro-cooling systems). For the study of the influence of an external magnetic field on the aggregation processes of magnetic nanoparticles in magnetic fluids, acoustic spectroscopy was used. The jump changes of the magnetic flux density at various temperatures influenced the acoustic attenuation. The measured changes were results of nanoparticle aggregations into new structures.

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