A systematic study of the dynamics of chain formation in electrorheological fluids
We report a systematic study of the dynamics of chain formation in electrorheological fluids using Brownian dynamics simulations. The parameters of the system such as applied electric field, polarizability, dipole moment, friction coefficient, and number density are expressed in reduced units and ch...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2021-02-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0037985 |
| _version_ | 1818870041184043008 |
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| author | Dávid Fertig Dezső Boda István Szalai |
| author_facet | Dávid Fertig Dezső Boda István Szalai |
| author_sort | Dávid Fertig |
| collection | DOAJ |
| description | We report a systematic study of the dynamics of chain formation in electrorheological fluids using Brownian dynamics simulations. The parameters of the system such as applied electric field, polarizability, dipole moment, friction coefficient, and number density are expressed in reduced units and changed in a wide range in order to map the system’s behavior as a function of them. We define time constants obtained from bi-exponential fits to time dependence of various physical quantities such as dipolar energy, diffusion constant, and average chain length. The smaller time constant is associated with the formation of shorter chains (pairs, triplets, and so on), while the larger time constant is associated with the formation of longer chains in the regime of those that overarch the simulation cell. We use the approximation that the dipole moments are induced by the applied electric field only, as usual in the literature. However, we report preliminary results for the case when particle–particle polarization is also possible. |
| first_indexed | 2024-12-19T12:00:43Z |
| format | Article |
| id | doaj.art-95d9b8e5eb7246578f1be2d1104b7ba0 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-19T12:00:43Z |
| publishDate | 2021-02-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-95d9b8e5eb7246578f1be2d1104b7ba02022-12-21T20:22:29ZengAIP Publishing LLCAIP Advances2158-32262021-02-01112025243025243-1510.1063/5.0037985A systematic study of the dynamics of chain formation in electrorheological fluidsDávid Fertig0Dezső Boda1István Szalai2Center for Natural Sciences, University of Pannonia, Egyetem u. 10, Veszprém 8200, HungaryCenter for Natural Sciences, University of Pannonia, Egyetem u. 10, Veszprém 8200, HungaryResearch Centre for Engineering Sciences, University of Pannonia, Egyetem u. 10, Veszprém 8200, HungaryWe report a systematic study of the dynamics of chain formation in electrorheological fluids using Brownian dynamics simulations. The parameters of the system such as applied electric field, polarizability, dipole moment, friction coefficient, and number density are expressed in reduced units and changed in a wide range in order to map the system’s behavior as a function of them. We define time constants obtained from bi-exponential fits to time dependence of various physical quantities such as dipolar energy, diffusion constant, and average chain length. The smaller time constant is associated with the formation of shorter chains (pairs, triplets, and so on), while the larger time constant is associated with the formation of longer chains in the regime of those that overarch the simulation cell. We use the approximation that the dipole moments are induced by the applied electric field only, as usual in the literature. However, we report preliminary results for the case when particle–particle polarization is also possible.http://dx.doi.org/10.1063/5.0037985 |
| spellingShingle | Dávid Fertig Dezső Boda István Szalai A systematic study of the dynamics of chain formation in electrorheological fluids AIP Advances |
| title | A systematic study of the dynamics of chain formation in electrorheological fluids |
| title_full | A systematic study of the dynamics of chain formation in electrorheological fluids |
| title_fullStr | A systematic study of the dynamics of chain formation in electrorheological fluids |
| title_full_unstemmed | A systematic study of the dynamics of chain formation in electrorheological fluids |
| title_short | A systematic study of the dynamics of chain formation in electrorheological fluids |
| title_sort | systematic study of the dynamics of chain formation in electrorheological fluids |
| url | http://dx.doi.org/10.1063/5.0037985 |
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