Failure pressures and drag reduction benefits of superhydrophobic wire screens

被引：12
作者：
Venkateshan, D. G. [1 ]
Amrei, M. M. [1 ]
Hemeda, A. A. [1 ]
Cullingsworth, Z. [1 ]
Corbett, J. [1 ]
Tafreshi, H. Vahedi [1 ]
机构：
[1] Virginia Commonwealth Univ, Dept Mech & Nucl Engn, Med Coll Virginia Campus, Richmond, VA 23284 USA
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2016年 / 511卷
基金：
美国国家科学基金会;
关键词：
Superhydrophobic wire screens; Breakthrough pressure; Wetting; Air-water interface; Slip length; STRIKING LOADING CAPACITY; HYDROSTATIC-PRESSURE; SURFACES; DESIGN; WATER; MESH; FLOW; WETTABILITY; FABRICATION; SEPARATION;
D O I：
10.1016/j.colsurfa.2016.09.087
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This work presents a detailed study on the failure pressure of spray-coated superhydrophobic wire screens in terms of their geometric and wetting properties. Such information is needed in designing fluid-fluid or fluid-air separation/barrier media as well as drag reducing and self-cleaning surfaces, amongst many others. Good agreement has been observed between the results of our numerical simulations and the experimental data for failure pressure. In addition, the wetted area of the screens was calculated and used to predict their drag reduction benefits when used in a Couette flow configuration under different operating pressures. Interestingly, it was found that operating pressure in the Couette configuration does not significantly affect the drag reducing effects of the screens. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：247 / 254
页数：8
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