Dynamic and kinematic characteristics of unsteady motion of a water-in-oil emulsion droplet in collision with a solid heated wall under conditions of convective heat transfer
| Parent link: | International Communications in Heat and Mass Transfer Vol. 137.— 2022.— [106277, 17 p.] |
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| Korporativní autor: | |
| Další autoři: | , , , |
| Shrnutí: | Title screen The paper presents the experimental results of spreading, fingering and corona-like splashing of water-in-oil emulsion droplets based on n-decane, isoparaffin oil and distilled water in the range of Weber numbers We = 100-900, wall temperatures Tw = 20-80 °C and in collision with a smooth solid surface. The spreading features and separate convective rolling structures in emulsion droplets are examined at the late stages of wetting. The effect of Tw on the viscous dissipation energy and the maximum spreading coefficient is established. The validity of the assumptions explaining the contradictory behavior of the maximum spreading diameter of emulsion droplets with increasing temperature is studied. The assumption of unstable behavior of the emulsion droplet rim during spreading is proposed. The maximum emulsion corona diameter and height decrease linearly with the Tw growth due to the longer corona lifetime. The maximum corona diameter increases following the power law with increasing the Brinkman number due to an increase in the liquid viscosity and a decrease in Tw. The results help to predict the corona's behavior by determining the relationship between the viscous dissipation of the spreading liquid and the energy transferred to the liquid from the wall due to molecular (thermal) conduction. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
| Vydáno: |
2022
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| Témata: | |
| On-line přístup: | https://doi.org/10.1016/j.icheatmasstransfer.2022.106277 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668577 |
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| 200 | 1 | |a Dynamic and kinematic characteristics of unsteady motion of a water-in-oil emulsion droplet in collision with a solid heated wall under conditions of convective heat transfer |f A. E. Semyonova, N. A. Khomutov, S. Ya. Misyura, M. V. Piskunov | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 52 tit.] | ||
| 330 | |a The paper presents the experimental results of spreading, fingering and corona-like splashing of water-in-oil emulsion droplets based on n-decane, isoparaffin oil and distilled water in the range of Weber numbers We = 100-900, wall temperatures Tw = 20-80 °C and in collision with a smooth solid surface. The spreading features and separate convective rolling structures in emulsion droplets are examined at the late stages of wetting. The effect of Tw on the viscous dissipation energy and the maximum spreading coefficient is established. The validity of the assumptions explaining the contradictory behavior of the maximum spreading diameter of emulsion droplets with increasing temperature is studied. The assumption of unstable behavior of the emulsion droplet rim during spreading is proposed. The maximum emulsion corona diameter and height decrease linearly with the Tw growth due to the longer corona lifetime. The maximum corona diameter increases following the power law with increasing the Brinkman number due to an increase in the liquid viscosity and a decrease in Tw. The results help to predict the corona's behavior by determining the relationship between the viscous dissipation of the spreading liquid and the energy transferred to the liquid from the wall due to molecular (thermal) conduction. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t International Communications in Heat and Mass Transfer | ||
| 463 | |t Vol. 137 |v [106277, 17 p.] |d 2022 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a emulsion droplet | |
| 610 | 1 | |a droplet-wall interaction | |
| 610 | 1 | |a convective heat transfer | |
| 610 | 1 | |a spreading | |
| 610 | 1 | |a splashing | |
| 610 | 1 | |a fingering | |
| 610 | 1 | |a капли | |
| 610 | 1 | |a эмульсии | |
| 610 | 1 | |a конвективный теплообмен | |
| 610 | 1 | |a брызги | |
| 701 | 1 | |a Semyonova |b A. E. |c specialist in the field of thermal power engineering and heat engineering |c research engineer at Tomsk Polytechnic University |f 1998- |g Aleksandra Evgenjevna |3 (RuTPU)RU\TPU\pers\47497 | |
| 701 | 1 | |a Khomutov |b N. A. |c specialist in the field of thermal power engineering and heat engineering |c research engineer at Tomsk Polytechnic University |f 1997- |g Nikita Andreevich |3 (RuTPU)RU\TPU\pers\47495 | |
| 701 | 1 | |a Misyura |b S. Ya. |c specialist in the field of power engineering |c leading researcher of Tomsk Polytechnic University, candidate of technical sciences |f 1964- |g Sergey Yakovlevich |3 (RuTPU)RU\TPU\pers\39641 | |
| 701 | 1 | |a Piskunov |b M. V. |c specialist in the field of thermal engineering |c engineer of Tomsk Polytechnic University |f 1991- |g Maksim Vladimirovich |3 (RuTPU)RU\TPU\pers\34151 |9 17691 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) |3 (RuTPU)RU\TPU\col\23504 |
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| 856 | 4 | |u https://doi.org/10.1016/j.icheatmasstransfer.2022.106277 | |
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