Dynamic Modeling and Numerical Simulation of Electrorheological Fluids Based on Lattice Boltzmann Method

Zhu, Shi Sha; Tang, Tiantong; Tang, Xin; Liu, Jin Gang; Xue, Qian; He, Hao

doi:10.4028/www.scientific.net/amm.487.494

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Dynamic responses were investigated by Nam et al (2008) with two different channels to 1 visualize the chain formation and to measure the response times as well as the pressure drop created by the ER effect. Particle behavior simulations were performed by Bonnecaze and Brady (1992), Belijar et al (2016), and Zhu et al (2014). It is possible to compare the results of the visualization with the simulation results.…”

Section: Introductionmentioning

confidence: 99%

Description and visualization of the highly dynamic behavior of the electrorheological effect

Bauerochs

Huo

Yossifon

et al. 2019

Journal of Intelligent Material Systems and Structures

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When an electrorheological fluid is located between two electrodes and an electrical voltage is applied to them, the particles in the fluid move and form chains along the electric field lines. This phenomenon is called the electrorheological effect. The exact behavior of the particles has not yet been studied completely. Some optical investigations of particle motion or behavior have been performed, but did not take into account the high dynamic range directly after the application of an electric field. This study is intended to help explain how the particles behave when they encounter an electric field and then try to align themselves with it. There is an investigation into how these chains develop in a microchannel within milliseconds. For this purpose, the particle behavior of the electrorheological fluid is investigated with high dynamic imaging using a microscope. A high-speed camera records videos of the first milliseconds at 3000 fps synchronously with the application of an electric field. The results provide a better understanding of the chain formation and particle behavior of the electrorheological effect in the high dynamic range and can be used for the design of electrorheological applications as well as simulations of the particle movement.

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Section: Introductionmentioning

confidence: 99%

Description and visualization of the highly dynamic behavior of the electrorheological effect

Bauerochs

Huo

Yossifon

et al. 2019

Journal of Intelligent Material Systems and Structures

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“…Other developed applications are, for example, valves, drives, or dampers (Brooks, 1989;Fees, 2004;Johnston, 2008;Simmonds, 1991;Zaun, 2006Zaun, , 2007. Dynamic models of the fluids have been disclosed, for example, by Krivenkov et al (2013) and Zhu et al (2014) for further understanding of the flow behavior of the ER fluids and to design applications. The behavior of suspensions or their particles with regard to sedimentation is important for applications in order to achieve a consistently high ER effect.…”

Section: Introductionmentioning

confidence: 99%

Approach on the improvement of the durability of an electrorheological valve

Bauerochs

Ulrich

Schneider³

et al. 2018

Journal of Intelligent Material Systems and Structures

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This work presents an approach on the improvement of the durability of an electrorheological valve and an electrorheological fluid. The pressure difference which can be achieved with the electrorheological effect is determined at the electrorheological valve. In order to simulate realistic operating conditions and to obtain a time-dependent pressure difference, several experiments are carried out in which the electrorheological fluid is permanently loaded over a period of several days with a field strength of up to 5 kV/mm. The results show that a simulated operating time of 2000 h would be possible without any problems. The knowledge gained on the characteristics of the electrorheological valve and electrorheological fluid in continuous operation is important for the design of electrorheological applications in order to estimate and determine their service life.

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Study on microscale flow characteristics of electrorheological Fluids

Shan-an¹,

Lei

2021

J. Phys.: Conf. Ser.

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Electrorheological fluid is a kind of intelligent material whose rheological properties change rapidly and reversibly under the action of external electric field, It has a broad prospect in practical engineering application. It is found in the research progress of electrorheological fluids. The time scale and space scale of the electrorheological effect are very small, and the flow process has some micro-scale flow characteristics. In this paper, the dynamics of dielectric particles in electrorheological fluids under static and dynamic coupling fields is numerically simulated by dissipative particle dynamics method. The influence of surface force under static field on the submicrostructure of Electrorheological fluid and the influence of electroviscosity under dynamic coupled field on the flow rate of Electrorheological fluid are also studied.

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Dynamic Modeling and Numerical Simulation of Electrorheological Fluids Based on Lattice Boltzmann Method

Cited by 3 publications

References 15 publications

Description and visualization of the highly dynamic behavior of the electrorheological effect

Description and visualization of the highly dynamic behavior of the electrorheological effect

Approach on the improvement of the durability of an electrorheological valve

Study on microscale flow characteristics of electrorheological Fluids

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