Results 11 to 20 of about 385 (175)
Electrorheological Fluid Dynamics [PDF]
Physical Review Letters, 2008 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.
Zhang, Jianwei +4 more
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Smart Fluids and Their Applications in Drilling Fluids to Meet Drilling Technical Challenges
Advances in Materials Science and Engineering, 2022 This article presents extensive analysis and review on recent developments in smart fluids as well as future opportunities of smart drilling fluids utilization in oil and gas well drilling while focusing on the following smart fluids: smart nanoparticles,
Deng Jingen +2 more
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Structure of electrorheological fluids [PDF]
The Journal of Chemical Physics, 2000 Specially synthesized silica colloidal spheres with fluorescent cores were used as model electrorheological fluids to experimentally explore structure formation and evolution under conditions of no shear. Using confocal scanning laser microscopy we measured the location of each colloid in three dimensions.
Dassanayake, U. +2 more
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Frontiers in Materials, 2021 Electrorheological (ER) fluids are a type of smart material with adjustable rheological properties. Generally, the high yield stress (>100 kPa) requires high electric field strength (>4 kV/mm).
Yuchuan Cheng +11 more
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Flow of electrorheological fluid under conditions of slip on the boundary
Abstract and Applied Analysis, 2006 We study a mathematical model describing flows of electrorheological fluids. A theorem of existence of a weak solution is proved. For this purpose the approximating-topological method is used.
R. H. W. Hoppe +3 more
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Halloysite nanotubes: Prospects in electrorheology
eXPRESS Polymer Letters, 2018 Electrorheological fluids based on polydimethylsiloxane filled with halloysite nanotubes were studied. The filler structure was characterized by TEM, SEM, and X-ray diffraction. When an electric field is applied to suspensions, their rheological behavior
N. M. Kuznetsov +6 more
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Visualization Experiment on Electrorheological Fluid in Dynamic Coupling Field
Advances in Materials Science and Engineering, 2016 Due to lack of visualization experiment on the mechanism of electrorheological effect in dynamic field, a visualization experimental system is designed and successfully made.
Shisha Zhu +3 more
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Applied Rheology, 2014 Electrorheological measurements represent a key approach in characterizing the efficiency of electrorheological fluids. The rotational rheometers, the Physica MCR 501 (Anton Paar) equipped with an electrorheological cell and the Bohlin Gemini CVOR 150 ...
Peer Petra +3 more
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On a doubly degenerate parabolic equation with a nonlinear damping term
Boundary Value Problems, 2021 Consider a double degenerate parabolic equation arising from the electrorheological fluids theory and many other diffusion problems. Let v ε $v_{\varepsilon }$ be the viscous solution of the equation. By showing that | ∇ v ε | ∈ L ∞ ( 0 , T ; L loc p ( x
Wenbin Xu
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Design and Optimization of a Spherical Magnetorheological Actuator
Mathematics, 2023 Recently, an increasing number of electromagnetic devices have been using smart fluids. These include ferrofluids, electrorheological fluids, and magnetorheological (MR) fluids.
Jakob Vizjak +2 more
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