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接触面温度对表面液滴蒸发过程的影响

金哲岩 胡晖

同济大学学报(自然科学版)2012,Vol.40Issue(3):495-498,4.
同济大学学报(自然科学版)2012,Vol.40Issue(3):495-498,4.DOI:10.3969/j.issn.0253-374x.2012.03.028

接触面温度对表面液滴蒸发过程的影响

Effect of Surface Temperature on Droplet Evaporation

金哲岩 1胡晖2

作者信息

  • 1. 同济大学航空航天与力学学院,上海200092
  • 2. 爱荷华州立大学航空工程系,美国埃姆斯50011
  • 折叠

摘要

Abstract

In the present study, the effects of the surface temperature of subtract on the evaporation process of water droplets are investigated experimentally. By analyzing the acquired images of the tiny tracer particles inside the water droplets, the effects of surface temperature on the Maragoni flows inside the droplets and the time evolutions of the contact line, contact angle and the volume change of the droplets during the evaporation process were revealed clearly and quantitatively. The measurement results show that as the surface temperature of substrate decreases, the reducing rates of the droplet volume and contact angle become slow. However, when the surface temperature becomes relatively low(e. G., T<5℃). The droplet volume and contact angle are found to increase with time due to the condensation process.

关键词

液滴/接触面温度/接触角/液滴量纲—体积

Key words

droplet/surface temperature/contact angle/droplet normalized volume

分类

数理科学

引用本文复制引用

金哲岩,胡晖..接触面温度对表面液滴蒸发过程的影响[J].同济大学学报(自然科学版),2012,40(3):495-498,4.

基金项目

同济大学青年优秀人才培养行动计划(1330219093). (1330219093)

同济大学学报(自然科学版)

OA北大核心CSCDCSTPCD

0253-374X

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