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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-472-4

ISBN Online: 978-1-56700-471-7

3rd Thermal and Fluids Engineering Conference (TFEC)
March, 4–7, 2018, Fort Lauderdale, FL, USA

THEORETICAL DAMPED OSCILLATING MODEL OF SEGMENT SPHERICAL DROPLET ON THE SOLID FLAT

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DOI: 10.1615/TFEC2018.mph.020965

Аннотация

The purpose of this paper is to present a theoretical damped oscillating mathematics relationship of segment spherical droplet on solid surface between the radius, volume, kinematic viscosity, density, surface tension coefficient and contact angle of the droplet. The theoretical equilibrium radii are compared with that of the numerical results. It has been shown that the theoretical equilibrium radii are larger than that of the numerical results. In addition, the theoretical model is used to study the effects of different shear stresses on the amplitude and cycle of droplet spreading radius. It can be found that the amplitude of spreading radius decreases with the increase of shear stresses. The decay speed of spreading velocity increases with the shear stress increasing.