Experimental study of the thermal behavior of spark generated bubbles in water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00208790" target="_blank" >RIV/68407700:21230/13:00208790 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24510/13:#0001031

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental study of the thermal behavior of spark generated bubbles in water

Popis výsledku v původním jazyce

In the paper thermal behavior of spark generated bubbles is studied experimentally using an optic sensor (a photodiode) and an acoustic sensor (a hydrophone). It is shown that there is plasma in the bubble interior during the whole first bubble oscillation. A simple method is used, based on several assumptions, which allows determining an estimate of the radiated optic energy and from it the surface temperature of the bubble when the thermal radiation reaches its maximum. This temperature can be then exploited when computing a number of other quantities. An example of the energy partition in the first bubble growth phase and in the first compression and the following expansion phases is given. The estimate of the surface plasma temperature when the bubble is compressed to its first minimum volume is also given and it has been found to be approximately 5900 K in a selected experiment. It is also shown that spark generated bubbles do not behave adiabatically and that the plasma in the bu

Název v anglickém jazyce

Experimental study of the thermal behavior of spark generated bubbles in water

Popis výsledku anglicky

In the paper thermal behavior of spark generated bubbles is studied experimentally using an optic sensor (a photodiode) and an acoustic sensor (a hydrophone). It is shown that there is plasma in the bubble interior during the whole first bubble oscillation. A simple method is used, based on several assumptions, which allows determining an estimate of the radiated optic energy and from it the surface temperature of the bubble when the thermal radiation reaches its maximum. This temperature can be then exploited when computing a number of other quantities. An example of the energy partition in the first bubble growth phase and in the first compression and the following expansion phases is given. The estimate of the surface plasma temperature when the bubble is compressed to its first minimum volume is also given and it has been found to be approximately 5900 K in a selected experiment. It is also shown that spark generated bubbles do not behave adiabatically and that the plasma in the bu

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Experimental Thermal and Fluid Science

ISSN

0894-1777

e-ISSN

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Svazek periodika

51

Číslo periodika v rámci svazku

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Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

84-93

Kód UT WoS článku

000326767800009

EID výsledku v databázi Scopus

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