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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00108439" target="_blank" >RIV/00216224:14310/17:00108439 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/17:PU144108

Výsledek na webu

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

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 x 8 x 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 x 8 x 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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/TA03010950" target="_blank" >TA03010950: Využití hydrofobních a olejofobních povrchů při interakci s kapalinami</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

EXPERIMENTAL FLUID MECHANICS 2016 (EFM16 )

ISBN

—

ISSN

2100-014X

e-ISSN

—

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

E D P SCIENCES

Místo vydání

CEDEX A

Místo konání akce

Marienbad, CZECH REPUBLIC

Datum konání akce

15. 11. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000407743800047