The influence of the drop formation rate at spreading over a microstructured surface on the contact angle; Thermophysics and Aeromechanics; Vol. 25, iss. 2

The influence of the drop formation rate at spreading over a microstructured surface on the contact angle; Thermophysics and Aeromechanics; Vol. 25, iss. 2

Bibliographic Details
Parent link:Thermophysics and Aeromechanics
Vol. 25, iss. 2.— 2018.— [P. 247–254]
Corporate Authors: Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова), Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Other Authors: Kuznetsov G. V. Geny Vladimirovich, Feoktistov D. V. Dmitriy Vladimirovich, Orlova E. G. Evgeniya Georgievna, Zykov I. Yu. Iliya Yurievich, Batishcheva K. A. Kseniya Arturovna
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
Subjects:
электронный ресурс
труды учёных ТПУ
macro-contact angle
the drop formation rate
pinning
microstructured surface
скорость
капли
поверхности
растекание
краевой угол
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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