The influence of the drop formation rate at spreading over a microstructured surface on the contact angle; Thermophysics and Aeromechanics; Vol. 25, iss. 2
| Parent link: | Thermophysics and Aeromechanics Vol. 25, iss. 2.— 2018.— [P. 247–254] |
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| Corporate Authors: | , , |
| Other Authors: | , , , , |
| Summary: | Title screen The article presents the experimental dependences of a macro-contact angle and the diameter of a distilled water drop spreading over solid microstructured surface on surface average roughness (Ra) and fluid flow rate (G). It has been found that at changing G from 0.005 to 0.02 ml/s, the contact angle decreases, and at a liquid flow rate over 0.02 ml/s, it increases. With small values of G (0.005−0.01 ml/s), the drop diameter grows throughout the spreading process. In the range of G from 0.02 to 0.16 ml/s at the final stage of spreading, the contact line pinning, i.e., the diam-eter constancy, has been detected. The hypothesis about the mechanism of the pinning process has been formulated: it is due to the zero sum of all forces acting on the drop (inertia, viscosity, friction, gravity, and surface tension. Режим доступа: по договору с организацией-держателем ресурса |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://doi.org/10.1134/S0869864318020099 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666641 |
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| 200 | 1 | |a The influence of the drop formation rate at spreading over a microstructured surface on the contact angle |f G. V. Kuznetsov, D. V. Feoktistov, E. G. Orlova [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 23 tit.] | ||
| 330 | |a The article presents the experimental dependences of a macro-contact angle and the diameter of a distilled water drop spreading over solid microstructured surface on surface average roughness (Ra) and fluid flow rate (G). It has been found that at changing G from 0.005 to 0.02 ml/s, the contact angle decreases, and at a liquid flow rate over 0.02 ml/s, it increases. With small values of G (0.005−0.01 ml/s), the drop diameter grows throughout the spreading process. In the range of G from 0.02 to 0.16 ml/s at the final stage of spreading, the contact line pinning, i.e., the diam-eter constancy, has been detected. The hypothesis about the mechanism of the pinning process has been formulated: it is due to the zero sum of all forces acting on the drop (inertia, viscosity, friction, gravity, and surface tension. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Thermophysics and Aeromechanics | ||
| 463 | |t Vol. 25, iss. 2 |v [P. 247–254] |d 2018 | ||
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| 610 | 1 | |a macro-contact angle | |
| 610 | 1 | |a the drop formation rate | |
| 610 | 1 | |a pinning | |
| 610 | 1 | |a microstructured surface | |
| 610 | 1 | |a скорость | |
| 610 | 1 | |a капли | |
| 610 | 1 | |a поверхности | |
| 610 | 1 | |a растекание | |
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| 701 | 1 | |a Kuznetsov |b G. V. |c Specialist in the field of heat power energy |c Professor of Tomsk Polytechnic University, Doctor of Physical and Mathematical Sciences |f 1949- |g Geny Vladimirovich |3 (RuTPU)RU\TPU\pers\31891 |9 15963 | |
| 701 | 1 | |a Feoktistov |b D. V. |c Specialist in the field of thermal engineering |c Associate Professor; Deputy Director of Tomsk Polytechnic University, Candidate of technical sciences |f 1983- |g Dmitriy Vladimirovich |y Tomsk |3 (RuTPU)RU\TPU\pers\34158 |9 17698 | |
| 701 | 1 | |a Orlova |b E. G. |c specialist in the field of thermal engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1991- |g Evgeniya Georgievna |3 (RuTPU)RU\TPU\pers\34157 |9 17697 | |
| 701 | 1 | |a Zykov |b I. Yu. |c specialist in the field of lighting engineering |c Associate Professor of Tomsk Polytechnic University, candidate of physico-mathematical sciences |f 1974- |g Iliya Yurievich |3 (RuTPU)RU\TPU\pers\34490 |9 17873 | |
| 701 | 1 | |a Batishcheva |b K. A. |c specialist in the field of heat and power engineering |c engineer assistant of Tomsk Polytechnic University |f 1994- |g Kseniya Arturovna |3 (RuTPU)RU\TPU\pers\46973 |9 22571 | |
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