The interaction between fluid flow and ultra-hydrophobic surface in mini channel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F17%3A00004595" target="_blank" >RIV/46747885:24620/17:00004595 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/epjconf/201714302045" target="_blank" >http://dx.doi.org/10.1051/epjconf/201714302045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/201714302045" target="_blank" >10.1051/epjconf/201714302045</a>

Result language

angličtina

Original language name

The interaction between fluid flow and ultra-hydrophobic surface in mini channel

Original language description

Interaction of liquid with ultra-hydrophobic surface is accompanied by creation of layer of air. The effect of the air film has a potential of use in industry in many applications. The quality of the surface is influenced by matrix roughness, the character of physical or chemical cover. There was developed a method for analysis of the liquid flow and the air film using the lighting in volume, visualization with CCD camera and long distance microscope, and optical filters. There were prepared four stainless steel samples of inner channel of dimensions (80 × 8 × 8) mm and initial surface roughness Ra 0.33, Ra 1.0, Ra 2.0, and Ra 2.2. The inner channel was treated with plasma and commercial hydrophobic coating Greblon (WEILBURGER Coatings GmbH). There was realized study focused on the liquid flow velocity profile close to the air film. There are present results for laminar, transient and turbulent flows. The study also estimated the air film thickness depending on the Re number. The knowledge of the air film behaviour helps applied suitable degree of processing and cover for the target application.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

EPJ Web of Conferences

ISBN

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ISSN

21016275

e-ISSN

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Number of pages

6

Pages from-to

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Publisher name

EDP Sciences

Place of publication

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Event location

Mariánské Lázně

Event date

Jan 1, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000407743800047