On capillary instability of jets of magneto‐rheological fluids
作者:
V. M. Entov,
M. Barsoum,
L. E. Shmaryan,
期刊:
Journal of Rheology
(AIP Available online 1996)
卷期:
Volume 40,
issue 5
页码: 727-739
ISSN:0148-6055
年代: 1996
DOI:10.1122/1.550761
出版商: The Society of Rheology
关键词: Magneto‐rheological fluids;Capillary instability;Jet breakup;Stability;SUSPENSIONS;CAPILLARY FLOW;SHEAR PROPERTIES;STABILIZATION;SURFACE TENSION
数据来源: AIP
摘要:
Capillary instability and breakup of jets of magneto‐rheological fluids are studied theoretically in the framework of one‐dimensional theory. Linear instability is considered and the non‐linear jet profile evolution is followed using numerical modelling. The magnetic field is assumed to be trapped within the liquid and both produces magnetic pressure and causes an increase in viscosity due to the magneto‐rheological effect. Both effects of the magnetic field result in slowing down the necking and lead to development of a beads‐on‐string structure at the late stage of jet evolution. It is shown that the magneto‐rheological effect by itself may prevent early breakup even in suspensions with strongly shear‐thinning rheological behavior.
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