On the theory of magnetoviscous effect in magnetorheological suspensions / Zubarev A.,Iskakova L.,Lopez-Lopez M. T.,Kuzhir P.,Bossis G. // JOURNAL OF RHEOLOGY. - 2014. - V. 58, l. 6. - P. 1673-1692.

ISSN/EISSN:

0148-6055 / нет данных

Type:

Article

Abstract:

A theoretical model of magnetoviscous effect in a suspension of nonBrownian linearly magnetizable particles is suggested. A simple shear flow in the presence of an external magnetic field aligned with the velocity gradient is considered. Under the action of the applied field, the particles are supposed to form dense highly elongated droplike aggregates. Two different scenarios of the aggregates' destruction under shearing forces are considered, namely, a ``bulk{''} destruction of aggregates into pieces and an ``erosive{''} destruction connected to the rupture of individual particles from the aggregate surface. Both models are based on a balance of forces acting either on the whole aggregate or on individual particles. The two approaches lead to qualitatively different Mason number (Ma) behaviors of the magnetic suspensions: The suspension viscosity scales as either Ma(-2/3) for the bulk destruction of aggregates or Ma(-4/5) for the erosive destruction. In any case, we do not recover Bingham behavior (Ma(-1)) often predicted by chain models of the magneto- or electrorheology. Our theoretical results are discussed in view of comparison with existing theories and experimental results in the wide range of Mason numbers. (C) 2014 The Society of Rheology.

Author keywords:

ELECTRORHEOLOGICAL FLUIDS; MAGNETIC-FIELD; ELECTRIC-FIELDS; YIELD-STRESS; SHEAR-FLOW; PARTICLES; BEHAVIOR; PHASE; TRANSFORMATIONS; FERROFLUID

DOI:

10.1122/1.4889902

Web of Science ID:

ISI:000345194700003

Соавторы в МНС:

Другие поля

Поле	Значение
Month	NOV-DEC
Publisher	JOURNAL RHEOLOGY AMER INST PHYSICS
Address	STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
Language	English
Keywords-Plus	ELECTRORHEOLOGICAL FLUIDS; MAGNETIC-FIELD; ELECTRIC-FIELDS; YIELD-STRESS; SHEAR-FLOW; PARTICLES; BEHAVIOR; PHASE; TRANSFORMATIONS; FERROFLUID
Research-Areas	Mechanics
Web-of-Science-Categories	Mechanics
Author-Email	andrey.zubarev@usu.ru
ResearcherID-Numbers	Lopez-Lopez, Modesto T/K-7327-2012 lotfollahi, zahra/A-6419-2015
ORCID-Numbers	Lopez-Lopez, Modesto T/0000-0002-9068-7795 Kuzhir, Pavel/0000-0001-7089-6197
Funding-Acknowledgement	Russian Fund of Fundamental Investigations {[}12-01-00132, 13-02-91052, 13-01-96047, 14-08-00283]; Government of the Russian Federation {[}02.A03.21.0006]; project CNRS PICS {[}6102]
Funding-Text	This work has been done under support of Russian Fund of Fundamental Investigations, Grant Nos. 12-01-00132, 13-02-91052, 13-01-96047, and 14-08-00283; by the Act 211 Government of the Russian Federation No. 02.A03.21.0006. The University of Granada (Accion Integrada con Rusia; Plan Propio 2011), as well as project CNRS PICS No. 6102 are also acknowledged for their financial support.
Number-of-Cited-References	48
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	23
Journal-ISO	J. Rheol.
Doc-Delivery-Number	AT8PL