Formation of magnetoconvection by photoabsorptive methods in ferrofluid layers

Dmitry Zablotsky; Ansis Mezulis; Elmars Blums

doi:10.1016/j.crme.2013.01.019

Formation of magnetoconvection by photoabsorptive methods in ferrofluid layers

Dmitry Zablotsky ¹ ; Ansis Mezulis ¹ ; Elmars Blums ¹

¹ Institute of Physics, University of Latvia, Miera str. 32, Salaspils-1 LV-2169, Latvia

Comptes Rendus. Mécanique, Volume 341 (2013) no. 4-5, pp. 449-454.

Résumé

A periodic concentration grating was induced in a layer of ferrofluid by photoabsorption and thermophoresis under the action of the applied uniform magnetic field. The application of the external field causes the appearance of an internal demagnetizing field within the layer and of magnetic forces due to the non-uniform distribution of concentration. The induced magnetic forces cause the appearance of parasitic microconvection within the layer. The experimental observations of the formation stage of the grating are interpreted to explain magnetoconvection, making use of numerical simulations.

Publié le : 2013-02-27

DOI : 10.1016/j.crme.2013.01.019

Mots clés : Forced Rayleigh scattering, Ferrofluids, Convection, Thermodiffusion

Affiliations des auteurs :

Dmitry Zablotsky ¹ ; Ansis Mezulis ¹ ; Elmars Blums ¹

¹ Institute of Physics, University of Latvia, Miera str. 32, Salaspils-1 LV-2169, Latvia

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     author = {Dmitry Zablotsky and Ansis Mezulis and Elmars Blums},
     title = {Formation of magnetoconvection by photoabsorptive methods in ferrofluid layers},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {449--454},
     publisher = {Elsevier},
     volume = {341},
     number = {4-5},
     year = {2013},
     doi = {10.1016/j.crme.2013.01.019},
     language = {en},
}

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Dmitry Zablotsky; Ansis Mezulis; Elmars Blums. Formation of magnetoconvection by photoabsorptive methods in ferrofluid layers. Comptes Rendus. Mécanique, Volume 341 (2013) no. 4-5, pp. 449-454. doi : 10.1016/j.crme.2013.01.019. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2013.01.019/

Bibliographie
Cité par

[1] M.M. Maiorov; A.O. Tsebers Magnetic microconvection on the diffusion front of the ferroparticles, Magnetohydrodynamics, Volume 19 (1983)

[2] A.Yu. Chukhrov Convective stability of dilute colloid in the presence of magnetic diffusion in an inhomogeneous field, Magnetohydrodynamics, Volume 22 (1986)

[3] W. Luo; T. Du; J. Huang Novel convective instabilities in a magnetic fluid, Phys. Rev. Lett., Volume 82 (1999)

[4] J.C. Bacri; A. Cebers; A. Bourdon; G. Demouchy; B.M. Heegaard; R. Perzynski Forced Rayleigh experiment in a magnetic fluid, Phys. Rev. Lett., Volume 74 (1995)

[5] J. Lenglet; A. Bourdon; J.-C. Bacri; G. Demouchy Thermodiffusion in magnetic colloids evidenced and studied by forced Rayleigh scattering experiments, J. Phys. Rev. E, Volume 65 (2002), p. 031408

[6] G. Demouchy; A. Mezulis; A. Bee; D. Talbot; J.-C. Bacri; A. Bourdon Diffusion and thermodiffusion studies in ferrofluids with a new two-dimensional forced Rayleigh scattering technique, J. Phys. D. Appl. Phys., Volume 37 (2004), pp. 1417-1428

[7] D. Zablotsky; E. Blums Relaxation mechanisms of photoinduced periodic microstructures in ferrofluid layers, Phys. Rev. E, Volume 84 (2011)

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