The origin of the interparticle potential of electrorheological fluids
The particles of electrorheological fluids can be modelled as dielectric sphere (DS) immersed in a continuum dielectric. When an external field is applied, polarization charges are induced on the surfaces of the spheres that can be represented as point dipoles placed in the centres of the spheres. W...
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| Дата: | 2013 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2013
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120846 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The origin of the interparticle potential of electrorheological fluids / D. Boda, M. Valiskó, I. Szalai // Condensed Matter Physics. — 2013. — Т. 16, № 4. — С. 43002:1-10. — Бібліогр.: 17 назв. — англ. |
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irk-123456789-1208462017-06-14T03:04:22Z The origin of the interparticle potential of electrorheological fluids Boda, D. Valiskó, M. Szalai, I. The particles of electrorheological fluids can be modelled as dielectric sphere (DS) immersed in a continuum dielectric. When an external field is applied, polarization charges are induced on the surfaces of the spheres that can be represented as point dipoles placed in the centres of the spheres. When the DSs are close to each other, the induced charge distributions are distorted by the electric field of the neighbouring DSs. This is the origin of the interaction potential between the DSs. The calculation of this energy is very time consuming, therefore, the DS model cannot be used in molecular simulations. In this paper, we show that the interaction between the point dipoles approximates the interaction of DSs appropriately. The polarizable point dipole model provides better results, but this model is not pair-wise additive, so it is not so practical in particle simulations. Частинки електрореологiчних плинiв можуть бути змодельованi як дiелектрична сфера, занурена в дiелектричне середовище. Коли прикласти зовнiшнє поле, на поверхнях сфер iндукуються поляризацiйнi заряди, якi можна представити як точковi диполi, розмiщенi в центрах сфер. Коли дипольнi сфери є близько одна до одної, розподiли iндукованих зарядiв є спотворенi електричним полем сусiднiх дипольних сфер. Таким є походження потенцiалу взаємодiї мiж дипольними сферами. Обчислення цiєї енергiї займає багато часу, тому модель дипольних сфер не може бути використана в молекулярних симуляцiях. У цiй статтi ми показуємо, що взаємодiя мiж точковими диполями належним чином апроксимує взаємодiю дипольних сфер. Модель поляризованих точкових диполiв забезпечує кращi результати, але ця модель не є попарно адитивною, отже не є практичною в симуляцiях частино. 2013 Article The origin of the interparticle potential of electrorheological fluids / D. Boda, M. Valiskó, I. Szalai // Condensed Matter Physics. — 2013. — Т. 16, № 4. — С. 43002:1-10. — Бібліогр.: 17 назв. — англ. 1607-324X PACS: 07.05.Tp, 47.65.Gx, 83.80.Gv, 34.20.Gj, 31.30.jn, 77.84.-s DOI:10.5488/CMP.16.43002 arXiv:1312.3573 http://dspace.nbuv.gov.ua/handle/123456789/120846 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
The particles of electrorheological fluids can be modelled as dielectric sphere (DS) immersed in a continuum dielectric. When an external field is applied, polarization charges are induced on the surfaces of the spheres that can be represented as point dipoles placed in the centres of the spheres. When the DSs are close to each other, the induced charge distributions are distorted by the electric field of the neighbouring DSs. This is the origin of the interaction potential between the DSs. The calculation of this energy is very time consuming, therefore, the DS model cannot be used in molecular simulations. In this paper, we show that the interaction between the point dipoles approximates the interaction of DSs appropriately. The polarizable point dipole model provides better results, but this model is not pair-wise additive, so it is not so practical in particle simulations. |
| format |
Article |
| author |
Boda, D. Valiskó, M. Szalai, I. |
| spellingShingle |
Boda, D. Valiskó, M. Szalai, I. The origin of the interparticle potential of electrorheological fluids Condensed Matter Physics |
| author_facet |
Boda, D. Valiskó, M. Szalai, I. |
| author_sort |
Boda, D. |
| title |
The origin of the interparticle potential of electrorheological fluids |
| title_short |
The origin of the interparticle potential of electrorheological fluids |
| title_full |
The origin of the interparticle potential of electrorheological fluids |
| title_fullStr |
The origin of the interparticle potential of electrorheological fluids |
| title_full_unstemmed |
The origin of the interparticle potential of electrorheological fluids |
| title_sort |
origin of the interparticle potential of electrorheological fluids |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2013 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/120846 |
| citation_txt |
The origin of the interparticle potential of electrorheological fluids / D. Boda, M. Valiskó, I. Szalai // Condensed Matter Physics. — 2013. — Т. 16, № 4. — С. 43002:1-10. — Бібліогр.: 17 назв. — англ. |
| series |
Condensed Matter Physics |
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