Velocity profiles of fluid flow close to a hydrophobic surface

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F17%3A00004645" target="_blank" >RIV/46747885:24620/17:00004645 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26210/17:PU140236
Result on the web
<a href="https://www.epj-conferences.org/articles/epjconf/abs/2017/12/epjconf_efm2017_02023/epjconf_efm2017_02023.html" target="_blank" >https://www.epj-conferences.org/articles/epjconf/abs/2017/12/epjconf_efm2017_02023/epjconf_efm2017_02023.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/201714302023" target="_blank" >10.1051/epjconf/201714302023</a>

Result language
angličtina
Original language name
Velocity profiles of fluid flow close to a hydrophobic surface
Original language description
The results of research on viscous liquid flow upon a superhydrophobic surface are presented in the paper. In the introduction, the degrees of surface hydrophobicity in correlation with an adhesion coefficient are defined. The usage of the adhesion coefficient for the definition of a new boundary condition is employed for expressing the slip of the liquid over the superhydrophobic surface. The slip of the liquid was identified on a special experimental device. The essence of the device consists of a tunnel of rectangular cross section whose one wall is treated with a superhydrophobic layer. The other walls are made of transparent organic glass whose surface is hydrophilic. Velocity profiles are measured by PIV. The methodology is drawn so that it allows the speed determination at the closest point to the wall. The measurements were performed for different Reynolds numbers for both laminar and turbulent flow. Based on the measured velocity profiles, marginal terms of use have been verified, expressing slippage of the liquid on the wall. New forms of velocity profiles considering superhydrophobic surfaces are shown within the work.
Czech name
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Czech description
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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

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