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Type: Artigo de evento
Title: Study Of The Effect Of Magnetic Field On Mr Suspensions Based On Jet Images
Author: Laterza Filho I.
Sabadini E.
Alkschbirs M.I.
Volpe P.L.O.
Bombard A.J.F.
Abstract: Suspensions of carbonyl iron powder in oil (CIP/O) have a very promising application on controlled fluids processes, as a very high local viscosity can be produced in the region in which the magnetic field is applied, allowing some control of the flow. In experiments performed in tube viscometers the flow can be completely stopped in some circumstances, such as specific pressure, magnetic field strength and particles concentration. This work presents our initial results of the jet morphology produced at the tip of the tube of a CIP/O, in terms of the applied pressure or of the applied magnetic field. A 3-CCD camera positioned in front of the jet collected "frozen" pictures of the jets produced in different conditions. Morphologic parameters of the jet such as the angle of the cone and the amplitude of the jet oscillation can be measured. Thus, the effect of the magnetic field on the fluid can be visualized and parameterized. It was observed that the perturbation due to the application of the magnetic field on the tip of the tube causes large changes on the jet oscillation. The amplitudes of the oscillations are very sensitive to the parameters described above. © World Scientific Publishing Company.
Rights: fechado
Identifier DOI: 10.1142/S0217979205030177
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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