Volume 19, Issue 10 (October 2019)                   Modares Mechanical Engineering 2019, 19(10): 2463-2469 | Back to browse issues page

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Saadat Bakhsh M, Mohammad Nouri M. Slip Length of the Nanocomposite Coating in Laminar Flow. Modares Mechanical Engineering 2019; 19 (10) :2463-2469
URL: http://mme.modares.ac.ir/article-15-18578-en.html
1- Mechanical Engineering Faculty, Iran University of Science and Technology, Tehran, Iran
2- Mechanical Engineering Faculty, Iran University of Science and Technology, Tehran, Iran , mnouri@iust.ac.ir
Abstract:   (2599 Views)
The superhydrophobic surfaces have many applications, including skin friction reduction, anti-icing, anti-fouling, and self-cleaning surfaces. Also, with the precise design of these surfaces, it is possible to increase the heat transfer coefficient in the condensation heat transfer. In recent years, a variety of methods have been proposed for the fabrication of the superhydrophobic surfaces, some of which are very complex and not applicable for industrial uses. In this paper, a nanocomposite superhydrophobic coating is produced in a simple and applicable way for large surfaces. Using this method, a superhydrophobic surface with surface structures in multi-scale and with a sliding angle of less than 5 degrees is obtained. After evaluating the specification of superhydrophobic surfaces, slip length measurement of the coating is performed using a fabricated measurement system. It should be noted that the slip length of the superhydrophobic surface is a characteristic feature of these surfaces and always its measurement is associated with challenges. In this research, the slip length of the created coating was measured by use of the proposed measurement system. The results show that the slip lengths of about 40-500 microns can be achieved by use of the proposed measurement system.
Full-Text [PDF 934 kb]   (1890 Downloads)    
Article Type: Original Research | Subject: Experimental Fluid Mechanics
Received: 2018/04/6 | Accepted: 2019/02/13 | Published: 2019/10/22

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