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181 | 0 | _ai | |
182 | 0 | _ab | |
200 | 1 |
_aDynamic 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 _fA. E. Semyonova, N. A. Khomutov, S. Ya. Misyura, M. V. Piskunov |
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203 |
_aText _celectronic |
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300 | _aTitle screen | ||
320 | _a[References: 52 tit.] | ||
330 | _aThe 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 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
461 | _tInternational Communications in Heat and Mass Transfer | ||
463 |
_tVol. 137 _v[106277, 17 p.] _d2022 |
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610 | 1 | _aэлектронный ресурс | |
610 | 1 | _aтруды учёных ТПУ | |
610 | 1 | _aemulsion droplet | |
610 | 1 | _adroplet-wall interaction | |
610 | 1 | _aconvective heat transfer | |
610 | 1 | _aspreading | |
610 | 1 | _asplashing | |
610 | 1 | _afingering | |
610 | 1 | _aкапли | |
610 | 1 | _aэмульсии | |
610 | 1 | _aконвективный теплообмен | |
610 | 1 | _aбрызги | |
701 | 1 |
_aSemyonova _bA. E. _cspecialist in the field of thermal power engineering and heat engineering _cresearch engineer at Tomsk Polytechnic University _f1998- _gAleksandra Evgenjevna _2stltpush _3(RuTPU)RU\TPU\pers\47497 |
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701 | 1 |
_aKhomutov _bN. A. _cspecialist in the field of thermal power engineering and heat engineering _cresearch engineer at Tomsk Polytechnic University _f1997- _gNikita Andreevich _2stltpush _3(RuTPU)RU\TPU\pers\47495 |
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701 | 1 |
_aMisyura _bS. Ya. _cspecialist in the field of power engineering _cleading researcher of Tomsk Polytechnic University, candidate of technical sciences _f1964- _gSergey Yakovlevich _2stltpush _3(RuTPU)RU\TPU\pers\39641 |
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701 | 1 |
_aPiskunov _bM. V. _cspecialist in the field of thermal engineering _cengineer of Tomsk Polytechnic University _f1991- _gMaksim Vladimirovich _2stltpush _3(RuTPU)RU\TPU\pers\34151 |
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712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа энергетики _bНаучно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) _h8025 _2stltpush _3(RuTPU)RU\TPU\col\23504 |
801 | 2 |
_aRU _b63413507 _c20230203 _gRCR |
|
856 | 4 | 0 | _uhttps://doi.org/10.1016/j.icheatmasstransfer.2022.106277 |
942 | _cCF |