Spreading of a distilled water droplet over polished and laser-treated aluminum surfaces

Результат исследований: Материалы для журналаСтатья

5 Цитирования (Scopus)

Выдержка

Spreading of a distilled water droplet over polished and laser-treated aluminum surfaces is studied experimentally. We present an attempt to apply the molecular-kinetic theory to the experimental dependences of the dynamic contact angle on the contact line speed. Advancing and receding contact angles at different liquid flow rates are obtained experimentally, and their values are used to calculate the contact angle hysteresis on each substrate. The bottom-up approach is used to form a droplet on the surface when liquid is supplied through an opening in the substrate. This makes it possible to control wetting and dewetting by increasing and decreasing the droplet volume. The main geometrical parameters are obtained using the shadow method by Axisymmetric Drop Shape Analysis-Profile. Experimental data on the dynamic contact angle on a laser-treated surface are found to be a better fit to the theoretical equation in comparison with the results on a smooth polished surface. We have formulated a hypothesis that the theoretical and experimental values of the dynamic contact angle are in good agreement due to the physics of the process (smaller hysteresis on the laser-treated surface).

Язык оригиналаАнглийский
Страницы (с-по)118-127
Число страниц10
ЖурналEuropean Journal of Mechanics, B/Fluids
Том68
DOI
СостояниеОпубликовано - 1 мар 2018

Отпечаток

Contact Angle
Aluminum
Dynamic Contact
Laser
aluminum
Water
water
lasers
Hysteresis
hysteresis
Substrate
Contact Line
Shape Analysis
Liquid Flow
liquid surfaces
liquid flow
Smooth surface
Wetting
Kinetic Theory
Bottom-up

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)

Цитировать

Spreading of a distilled water droplet over polished and laser-treated aluminum surfaces. / Orlova, E. G.; Feoktistov, D. V.; Kuznetsov, G. V.; Ponomarev, K. O.

В: European Journal of Mechanics, B/Fluids, Том 68, 01.03.2018, стр. 118-127.

Результат исследований: Материалы для журналаСтатья

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AU - Kuznetsov, G. V.

AU - Ponomarev, K. O.

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