Shear flow behavior of confined magnetorheological fluids at low magnetic field strengths
作者: Juan VicenteModesto T. López-LópezJuan D. G. DuránFernando González-Caballero
作者单位: 1Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Granada
2Product Microstructure, Unilever R&D Colworth
刊名: Rheologica Acta, 2005, Vol.44 (1), pp.94-103
来源数据库: Springer Nature Journal
DOI: 10.1007/s00397-004-0383-6
关键词: RheologyMagnetorheologyWall slipMagnetorheological fluidsConfinements
英文摘要: Abstract(#br)The non-linear properties of iron based magneto-rheological (MR) fluids are investigated at low magnetic field strengths (0–1.7 kA/m) and different gap thickness (0–500 μm) in a plate-plate configuration. Single-width chain models qualitatively predict the low-shear flow behavior when plotting the field-specific viscosity, η F , as a function of the Mason number, Mn : a slope close to −1 is observed in log-log representations. Wall depletion effects are observed when the suspensions are sheared under the presence of low external magnetic fields applied and/or large gap distances. These results are correlated to frictional yield stress measurements and chain length distribution calculations in the presence of the external magnetic field. Finally, an equivalent slip layer...
全文获取路径: Springer Nature  (合作)
影响因子:1.626 (2012)

  • confined 限于
  • magnetic 磁的
  • field 
  • behavior 行为