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Nonisothermal drop impact and evaporation on polymer nanofiber mats

Weickgenannt, C. M. and Zhang, Y. and Lembach, A. N. and Roisman, Ilia V. and Gambaryan-Roisman, Tatiana and Yarin, A. L. and Tropea, Cameron (2011):
Nonisothermal drop impact and evaporation on polymer nanofiber mats.
In: Physical Review E, American Physical Society, pp. 036305-1, 83, (3), ISSN 1539-3755, DOI: 10.1103/PhysRevE.83.036305, [Online-Edition: http://dx.doi.org/10.1103/PhysRevE.83.036305],
[Article]

Abstract

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.

Item Type: Article
Erschienen: 2011
Creators: Weickgenannt, C. M. and Zhang, Y. and Lembach, A. N. and Roisman, Ilia V. and Gambaryan-Roisman, Tatiana and Yarin, A. L. and Tropea, Cameron
Title: Nonisothermal drop impact and evaporation on polymer nanofiber mats
Language: English
Abstract:

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.

Journal or Publication Title: Physical Review E
Volume: 83
Number: 3
Publisher: American Physical Society
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Exzellenzinitiative
Exzellenzinitiative > Clusters of Excellence
Zentrale Einrichtungen
Exzellenzinitiative > Clusters of Excellence > Center of Smart Interfaces (CSI)
Date Deposited: 28 Aug 2017 16:25
DOI: 10.1103/PhysRevE.83.036305
Official URL: http://dx.doi.org/10.1103/PhysRevE.83.036305
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