Nonisothermal drop impact and evaporation on polymer nanofiber mats

被引：57

作者：

Weickgenannt, Christina M. ^{[1
,2
]}

Zhang, Yiyun ^{[3
]}

Lembach, Andreas N. ^{[1
,2
]}

Roisman, Ilia V. ^{[1
,2
]}

Gambaryan-Roisman, Tatiana ^{[2
,4
]}

Yarin, Alexander L. ^{[2
,3
]}

Tropea, Cameron ^{[1
,2
]}

机构：

[1] Tech Univ Darmstadt, Inst Fluid Mech & Aerodynam, D-64287 Darmstadt, Germany

[2] Tech Univ Darmstadt, Ctr Smart Interfaces, D-64287 Darmstadt, Germany

[3] Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA

[4] Tech Univ Darmstadt, Inst Tech Thermodynam, D-64287 Darmstadt, Germany

来源：

PHYSICAL REVIEW E | 2011年 / 83卷 / 03期

基金：

美国国家科学基金会;

关键词：

HEAT-TRANSFER; SPRAY; IMPINGEMENT; JETS;

D O I：

10.1103/PhysRevE.83.036305

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The work describes the experimental and theoretical investigation of water drop impact onto electrospun polymer nanofiber mats deposited on heated stainless-steel foils. The measurements encompass water spreading over and inside the mat, as well as the corresponding thermal field. The results show that the presence of polymer nanofiber mats prevents receding motion of drops after their complete spreading and promotes the moisture spreading inside the mat over a large area of the heater, which facilitates a tenfold enhancement of heat removal as the latent heat of drop evaporation.

引用

页数：13

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