Flow separation at the water slide in an open tray with a superhydrophobic coating (EN) / Отрыв потока от стенок при скольжении воды в открытом лотке с супергидрофобным покрытием (RU)

V. K. Verkholomov

Abstract: The absence of scale factor influence on water sliding in an open tray with a superhydrophobic coating was experimentally established. In this case, the flow of water occurs with the separation of the flow from the side walls.

// Science and World. 2020. № 3, V. 1, p. 8-11
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Method of determination of free surface energy of high-energy solids (EN) / Метод определения свободной поверхностной энергии высокоэнергетических твердых тел (RU)

V. K. Verkholomov

Abstract: A new method for determining the surface energy characteristics (σSV, σSVd, σSVp) of high-energy solid surfaces (primarily pure metals) has been developed. The method is based on the application of the universal capillary pressure equation obtained in the new alternative wetting theory. As an example of using the proposed method, the surface energy characteristics of the glass of capillary tubes from the work [5] are determined.

// Science and World. 2019. № 10, V. 1, p. 12-15
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The critical surface tension of wetting and its connections with surface specifications on the interphase boundaries (EN) / Критическое поверхностное натяжение смачивания и его связи с поверхностными характеристиками на границах раздела фаз (RU)

V. K. Verkholomov

Abstract: The equation of the critical surface tension was obtained on the basis of a new equation Young-Verkholomov contact angle. It is established that in the case of wetting of non-polar solids by non-polar liquids (the case of Zisman), the critical surface tension is equal to the corresponding value of the surface energy of the solid.

// Science and World. 2019. № 2, V. 1, p. 14-17
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The dependence of contact angle value from surface features on the interphase boundaries (EN) / Зависимость величины краевого угла смачивания от поверхностных характеристик на границах раздела фаз (RU)

V. K. Verkholomov

Abstract: As a result of computational studies, a unique correspondence between the value of θ0 and the adhesion force of the solid body σA was established. The transition from the classical Young equation to the equation Young-Verkholomov (from the free surface energy of the solid body σSV to σA) allows us to predict the development of new solid smooth coatings with θ0 ≥ 130-1350.

// Science and World. 2017. № 12, V. 1, p. 15-17
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Experimental evaluation of the influence of the end effects of a capillary tube on the magnitude of the adhesion force at wetting (EN) / Экспериментальная оценка влияния концевых эффектов капиллярной трубки на величину силы адгезии при смачивании

V. K. Verkholomov

Abstract: For the first time, the experimental results on adhesion forces arising from liquid spreading over a solid surface were obtained. The technique, developed in the work, helped to obtain the force of adhesion distribution over the height of operating zone in the capillary. It is shown that 80-90% of the total adhesive force is formed in close proximity to the liquid column wetting line.

// Science and World. 2018. № 3, V. 1, p. 11-16
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The new theory of the liquid rise in the capillary tube (capillary rise) (EN) / Новая теория поднятия жидкости в капиллярной трубке (капиллярного поднятия) (RU)

V. K. Verkholomov

Abstract: The new theory of the Liquid Rise in capillary tube (Capillary Rise) has developed on the basis of a new equation Young-Verkholomov of contact angle.

// Science and World. 2017. №12, V. 1, p. 22-24
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Estimation of area of adhesive forces action at liquid drop spreading on the solid surface (EN) / Оценка размеров области действия сил адгезии при растекании капли жидкости по твердой поверхности (RU)

V. K. Verkholomov

Abstract: It is shown that at liquid drop spreading on a solid smooth uniform surface there is a local ring-shaped area of adhesive forces action around the drop on the surface. It is obtained that width of this area is b = 0,414rk where rk is the radius of the drop base sitting on the surface.

// Science and World. 2017, № 11, V. 1, p. 11-13
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On adhesion work at wetting solid surface by liquid phase (EN) / О работе адгезии при смачивании твердой поверхности жидкой фазой (RU)

V. K. Verkholomov

Abstract: On the basis of the mechanical model for solid body/liquid/vapour system the new equation of adhesion work at wetting solid surface by liquid phase is obtained. It was shown that the known Young-Dupre equation according to form is a particular case of the new Young-Verkholomov equation of contact angle.

// Science and World. 2017, № 4, V. 1, p. 11-14
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Physical features of new equation (Young-Verkholomov equation) of contact angle of wetting (EN) / Физические особенности нового уравнения (уравнения Юнга-Верхоломова) краевого угла смачивания (RU)

V. K. Verkholomov

Abstract: The isolated system solid / liquid / steam should be considered as a kind of a mechanical system based on the interaction of the forces acting in the system. Within this concept and with the involvement of molecular-kinetic theory the author considered force characteristics at the interface when wetting low-energy smooth solid surfaces. It is shown that the magnitude of the adhesion forces occurring upon wetting between particles (molecules) of liquid placed on a three-phase contact line, and particles on the surface of the solid depends on the surface energy characteristics of a solid body and a liquid. The resulting new equation (Young-Verkholomov equation) of the equilibrium contact angle is

Cosθ0 = (σA - σLS) / σLV,

where σA - the adhesive force at the interface solid/vapor;

σLS, σLV - surface tension of liquid at the interface liquid / solid phase, and liquid / vapor respectively.

// Materials of the XII international research and practice conference "Science, Technology and Higher Education". December 21-22, 2016. Westwood, Canada. P. 97-110.
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Tsunami can be pacified (EN) / Цунами можно усмирить (RU)

Факты последних лет показывают, какой огромный материальный урон и сколько человеческих жертв причиняют волны мощных цунами, которые периодически обрушиваются на прибрежные районы ряда стран тихоокеанского бассейна. Так, в результате катастрофического цунами в марте 2011 года в Японии погибло около 20 тысяч человек, а также была разрушена атомная станция в Фукусиме.

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