A simple model of heating and evaporation of droplets on a superhydrophobic surface; International Journal of Heat and Mass Transfer; Vol. 201
| Parent link: | International Journal of Heat and Mass Transfer Vol. 201.— 2023.— [123568, 10 p.] |
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| Korporativní autor: | |
| Další autoři: | , , , |
| Shrnutí: | Title screen A new model for heating and evaporation of a droplet on a superhydrophobic surface is proposed. The model uses the analytical solution to the spherically symmetric heat transfer equation with the source term which is implemented in the numerical code and used at each time step of the calculations. It is assumed that heat supplied by conduction and radiation from the substrate to the droplet is instantaneously and homogeneously distributed throughout the whole droplet volume. Both these assumptions are acceptable only in the case when these heats are much smaller than heat supplied to the droplet from ambient gas by convection. It is shown that in some cases heat supplied to the droplet by conduction is comparable or greater than that supplied to the droplet by convection. This happens predominantly at the final stages of droplet evaporation and in this case the model cannot be used. Another assumption on which the model is based is that the effects of the ambient gas temperature gradient on convection droplet heating can be ignored and that this heating can be considered assuming that the temperature of the ambient gas around the droplet is homogeneous. The model is validated using in-house experimental data and experimental data available from the literature. Good agreement between modelling and experimental results is demonstrated when the assumptions on which the model is based are satisfied. |
| Jazyk: | angličtina |
| Vydáno: |
2023
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| Témata: | |
| On-line přístup: | https://doi.org/10.1016/j.ijheatmasstransfer.2022.123568 |
| Médium: | MixedMaterials Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668703 |
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| 200 | 1 | |a A simple model of heating and evaporation of droplets on a superhydrophobic surface |f D. V. Antonov, R. M. Fedorenko, P. A. Strizhak, S. S. Sazhin | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 45 tit.] | ||
| 330 | |a A new model for heating and evaporation of a droplet on a superhydrophobic surface is proposed. The model uses the analytical solution to the spherically symmetric heat transfer equation with the source term which is implemented in the numerical code and used at each time step of the calculations. It is assumed that heat supplied by conduction and radiation from the substrate to the droplet is instantaneously and homogeneously distributed throughout the whole droplet volume. Both these assumptions are acceptable only in the case when these heats are much smaller than heat supplied to the droplet from ambient gas by convection. It is shown that in some cases heat supplied to the droplet by conduction is comparable or greater than that supplied to the droplet by convection. This happens predominantly at the final stages of droplet evaporation and in this case the model cannot be used. Another assumption on which the model is based is that the effects of the ambient gas temperature gradient on convection droplet heating can be ignored and that this heating can be considered assuming that the temperature of the ambient gas around the droplet is homogeneous. The model is validated using in-house experimental data and experimental data available from the literature. Good agreement between modelling and experimental results is demonstrated when the assumptions on which the model is based are satisfied. | ||
| 461 | |t International Journal of Heat and Mass Transfer | ||
| 463 | |t Vol. 201 |v [123568, 10 p.] |d 2023 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a droplet | |
| 610 | 1 | |a heating | |
| 610 | 1 | |a evaporation | |
| 610 | 1 | |a superhydrophobic surface | |
| 610 | 1 | |a mathematical model | |
| 701 | 1 | |a Antonov |b D. V. |c specialist in the field of heat and power engineering |c Research Engineer of Tomsk Polytechnic University |f 1996- |g Dmitry Vladimirovich |3 (RuTPU)RU\TPU\pers\46666 | |
| 701 | 1 | |a Fedorenko |b R. M. |c specialist in the field of thermal engineering |c Research Engineer of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1997- |g Roman Mikhaylovich |9 88535 | |
| 701 | 1 | |a Strizhak |b P. A. |c Specialist in the field of heat power energy |c Doctor of Physical and Mathematical Sciences (DSc), Professor of Tomsk Polytechnic University (TPU) |f 1985- |g Pavel Alexandrovich |3 (RuTPU)RU\TPU\pers\30871 |9 15117 | |
| 701 | 1 | |a Sazhin |b S. S. |c geophysicist |c Leading researcher at Tomsk Polytechnic University, PhD in Physics and Mathematics |f 1949- |g Sergey Stepanovich |9 88718 | |
| 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.ijheatmasstransfer.2022.123568 | |
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