Character of sessile droplets evaporation on hydrophilic and hydrophobic heating surface with constant heat fluxes

GAO Ming; KONG Peng; ZHANG Lixin

doi:10.11949/j.issn.0438-1157.20171684

您当前的位置：

首页 >

文章列表页 >

Character of sessile droplets evaporation on hydrophilic and hydrophobic heating surface with constant heat fluxes

更新时间：2025-12-10

- Character of sessile droplets evaporation on hydrophilic and hydrophobic heating surface with constant heat fluxes
- CIESC Journal Issue 7, Pages: 2979-2984(2018)
- 作者机构：
  
  上海理工大学能源与动力工程学院, 上海市动力工程多相流动与传热重点实验室,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171684
  CLC： K121
- Online First：05 July 2018，
  
  Published：05 July 2018
- 稿件说明：
移动端阅览
GAO Ming, KONG Peng, ZHANG Lixin. Character of sessile droplets evaporation on hydrophilic and hydrophobic heating surface with constant heat fluxes[J]. CIESC Journal, 2018, (7): 2979-2984.
DOI：

GAO Ming, KONG Peng, ZHANG Lixin. Character of sessile droplets evaporation on hydrophilic and hydrophobic heating surface with constant heat fluxes[J]. CIESC Journal, 2018, (7): 2979-2984. DOI： 10.11949/j.issn.0438-1157.20171684.

摘要

以恒热流方式结合高速摄影技术同步观察记录3 μl的小液滴在不同亲疏水表面的蒸发过程。通过一系列的对比实验观察记录了不同亲疏水表面液滴蒸发时接触角、接触直径、蒸发时间等的动态特性。从实验分析中可以看出亲水表面液滴蒸发速率比疏水表面上液滴蒸发速率快，并且随着热通量的增大，液滴蒸发速率增大。在恒热流条件下亲疏水表面液滴蒸发以CCR模式为主，在蒸发后期呈现混合蒸发模式，全程未出现CCA模式。

Abstract

In previous researchers' studies

the evaporation of droplets were conducted on heating surfaces with constant wall temperature. However

no previous experiments were carried out on a constant heat flux heating surface. The evaporation of 3 μl sessile droplets on hydrophilic and hydrophobic heating surface with constant heat fluxes were observed and recorded by a high-speed photography. The evaporation time

dimensionless contact angle

dimensionless contact diameter and height were presented. The evaporation rate of the droplet on the hydrophilic surface was faster than that on the hydrophobic surface

and with the increase of the heat fluxes

the evaporation rate of the droplet increases. For both hydrophilic and hydrophobic surface

the evaporation mainly followed the CCR mode

and there was a mixed evaporation mode at the later stage of evaporation

but no CCA mode was found in the whole process.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Improvement and numerical validation of quasi-steady-state frosting model based on thermal and mass transfer effect

Calculation and analysis of thermal performance of horizontal circular tube falling film evaporative condenser

Analysis of the influence of microlayer evaporation on single-bubble pool boiling by coupling the experimental observations and numerical simulations

Growth characteristics of microlayer at bottom of boiling bubble on hydrophobic heating surface

Analysis of principle, performance and applicability of indirect evaporative water chiller

Related Author

WU Linkai

LIN Zhimin

WANG Liangbi

ZHANG Xiankai

WANG Boyu

GUO Yali

SHEN Shengqiang

Feng PAN

Related Institution

School of Mechanical Engineering, Lanzhou Jiaotong University

Key Laboratory of Railway Vehicle Thermal Engineering, Ministry of Education

National Joint Engineering Research Center for Thermal Energy Integration, School of Energy and Power Engineering, Dalian University of Technology

School of Energy and Power Engineering, Dalian University of Technology

Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology

⁰