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Theses

LEVITATION ELECTROMAGNETIQUE
Expériences terrestres et simulations numériques

Abstract : The thesis carried out is at the same time an experimental and numerical work.
An electromagnetic experiment of levitation was implemented. A specific image processing
was developed. Thus videos obtained were used as a basis to have geometrical
and electric data in order to confront the results of various programs with controlled
experiments and in order to highlight the effect of the helicity of the inductor on
the form of the free surface of the drop and to control the behaviour of a drop under
modulated magnetic field, in particular for frequencies of modulations close to the
frequency of natural resonance of the load. Numerical work leads to the validation of
axisymmetrical programs for the description of electromagnetism, the average form
of the free surface, the movements of surface and inside the drop. A criterion of destabilization
based on the initial deformation and the viscosity of the drop was proposed.
This criterion takes into account internal electromagnetic stirring.
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https://tel.archives-ouvertes.fr/tel-00141231
Contributor : Benoit Bardet <>
Submitted on : Thursday, April 12, 2007 - 10:16:52 AM
Last modification on : Friday, October 23, 2020 - 4:37:13 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 11:20:51 PM

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  • HAL Id : tel-00141231, version 1

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Benoit Bardet. LEVITATION ELECTROMAGNETIQUE
Expériences terrestres et simulations numériques. Dynamique des Fluides [physics.flu-dyn]. Institut National Polytechnique de Grenoble - INPG, 2006. Français. ⟨tel-00141231⟩

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