Evaporation of Water Droplet on Heated Textured Wall at Various Contact Angles

被引：8

作者：

Misyura, S. Ya ^{[1
]}

机构：

[1] Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk, Russia

来源：

JOURNAL OF ENGINEERING THERMOPHYSICS | 2022年 / 31卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

MARANGONI FLOW; CONVECTION; CRYSTALLIZATION; CONDENSATION; DIFFUSION; SURFACES; BEHAVIOR; MICRO;

D O I：

10.1134/S1810232822030043

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The evaporation of water droplet on various heated surfaces (smooth and textured walls) has been studied experimentally. The temperature field of the droplet surface has a more uniform distribution on a hydrophilic textured surface of substrate. During evaporation of water droplet on a hydrophobic wall, the temperature field is substantially inhomogeneous. Measurements in a vertical cross section of a droplet on a hydrophobic surface were done by the particle image velocimetry method. They reveal occurrence of a toroidal vortex flow in the liquid. The average velocity of free convective motion in a droplet decreases as the evaporation goes on. The maximum heat flux during droplet evaporation corresponds to a hydrophilic textured surface.

引用

页码：414 / 419

页数：6

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