نتایج جستجو برای: electrorheological fluid

تعداد نتایج: 220613  

Journal: :Physical Review Letters 2008

Journal: :Soft matter 2015
Jayabrata Dhar Uddipta Ghosh Suman Chakraborty

The flow of electrorheological fluids is characterized by an apparent increase in viscosity manifested by the yield stress property of the fluid, which is a function of the applied electric field and the concentration of the suspended solute phase within the dielectric medium. This property of electrorheological fluids generally hinders flow through a capillary if the imposed shear stress is lo...

Journal: :Physical review letters 2008
Jianwei Zhang Xiuqing Gong Chun Liu Weijia Wen Ping Sheng

We use the Onsager principle to derive a two-phase continuum formulation for the hydrodynamics of the electrorheological (ER) fluid, consisting of dielectric microspheres dispersed in an insulating liquid. Predictions of the theory are in excellent agreement with the experiments. In particular, it is shown that whereas the usual configuration of applied electric field being perpendicular to the...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2014
Takahiro Sakaue Kyohei Shitara Takao Ohta

We analyze the electrorheological effect in immiscible fluid mixtures with dielectric mismatch. By taking the electric field effect into account, which couples to the dynamics of domain morphology under flow, we propose a set of electrorheological constitutive equations valid under the condition where the relative magnitude of the flow field is stronger than that of the electric field. Through ...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2015
m. m. soleymani m. a. hajabasi s. elahi mahani

in this paper, a rectangular sandwich plate with a constrained layer and an electrorheological (er) fluid core is investigated. the rectangular plate is covered an er fluid core and a constraining layer to improve the stability of the system. the two outer layers of the sandwich structure are elastic. the viscoelastic materials express the middle layer behavior under electric field and small st...

Journal: :Electrophoresis 2009
Menying Zhang Xiuqing Gong Weijia Wen

Microfluidics, especially droplet microfluidics, attracts more and more researchers from diverse fields, because it requires fewer materials and less time, produces less waste and has the potential of highly integrated and computer-controlled reaction processes for chemistry and biology. Electrorheological fluid, especially giant electrorheological fluid (GERF), which is considered as a kind of...

2009
X. F. Wu L. W. Zhou J. P. Huang

Mechanical abrasion is a phenomenon which commonly occurs during the application of polarmolecular electrorheological (PMER) fluids. We experimentally investigate its effect by milling PMER particles for different times. We find that this effect can significantly reduce electrorheological effects of PMER fluids made of butyrolactone-modified TiO2 particles. This reduction results from the reduc...

Journal: :The Journal of Chemical Physics 1992

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