Dynamic simulation of the temporal response of microstructure formation inmagnetorheological fluids

Citation
Hv. Ly et al., Dynamic simulation of the temporal response of microstructure formation inmagnetorheological fluids, INT J MOD B, 15(6-7), 2001, pp. 894-903
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN journal
02179792 → ACNP
Volume
15
Issue
6-7
Year of publication
2001
Pages
894 - 903
Database
ISI
SICI code
0217-9792(20010320)15:6-7<894:DSOTTR>2.0.ZU;2-R
Abstract
Efficient numerical simulations of microstructure development in magnetorhe ological (MR) fluids are conducted. The simulations, which are based upon a fast multipole olgorithm, treat the magnetic inclusions as two-dimensional continuum magnetic entities. The development of microstructure is quantifi ed by computing and recording the time evolution of the effective permeabil ity of the composite fluid. Such a principle has been previously exploited for the experimental measurements of microstructure development [Jolly, Ben der and Mathers, ERMR'97, Yonezawa, Japan 1997]. As was observed experiment ally, numerical simulations reveal the evolution of microstructure to be mu ltimodal in nature. Unlike the experiments, the numerical simulations affor d us the ability to observe the physical mechanisms associated with various modes.