Single cavitation bubble interaction close to hydrophobic surface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F17%3A00004573" target="_blank" >RIV/46747885:24620/17:00004573 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Single cavitation bubble interaction close to hydrophobic surface

Popis výsledku v původním jazyce

The cavitation bubble has a great potential to be used for local surface hardening. Highly controlled and geometrically placed defined bubbles can easily machine the area of interest modifying the surface of material. However, the effect of pointed pressure hit can be sometimes undesirable. Usage of hydrophobic cover could shield and spread the force in certain part of working. The aim of this project was to design a setup of Laser Induced Breakup and study the effect of cavitation bubble on hydrophobic surface. The main interest was focused on the air film behavior that is created on the surface in interaction with liquids. Here we used 532nm Nd:YAG pulse laser for the cavitation bubble generation. The process and the impact of cavitation bubble was visualized using high speed shadowgraphy. We also measured the air film thickness using microPIV technique and study its behavior under increasing liquid flow impact.

Název v anglickém jazyce

Single cavitation bubble interaction close to hydrophobic surface

Popis výsledku anglicky

The cavitation bubble has a great potential to be used for local surface hardening. Highly controlled and geometrically placed defined bubbles can easily machine the area of interest modifying the surface of material. However, the effect of pointed pressure hit can be sometimes undesirable. Usage of hydrophobic cover could shield and spread the force in certain part of working. The aim of this project was to design a setup of Laser Induced Breakup and study the effect of cavitation bubble on hydrophobic surface. The main interest was focused on the air film behavior that is created on the surface in interaction with liquids. Here we used 532nm Nd:YAG pulse laser for the cavitation bubble generation. The process and the impact of cavitation bubble was visualized using high speed shadowgraphy. We also measured the air film thickness using microPIV technique and study its behavior under increasing liquid flow impact.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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 periodika

International Journal of Mechanics

ISSN

19984448

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

2017

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

73-81

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85018448958