Experimental study of strong pressure pulses radiated by oscillating spark bubbles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F09%3A%230000248" target="_blank" >RIV/46747885:24510/09:#0000248 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Experimental study of strong pressure pulses radiated by oscillating spark bubbles
Original language description
Pressure pulses radiated by spark generated bubbles are examined with an aim to determine whether shock fronts developed in them. A rise time of a leading edge of the pressure pulse is used as a suitable indicator of the shock front presence. Only pressure pulses radiated by bubbles having maximum radii of approximately 45 mm are considered. It has been found that for moderate intensities of bubble oscillations no shock fronts developed in the pressure pulses. However, if the bubbles oscillate with a sufficiently high intensity the rise time becomes as short as 1us, indicating that the limits given by the hydrophone are reached. The procedure used in this study does not allow determining if the pressure pulse deformation is due to finite amplitude waveeffects or due to shock front presence. To resolve thi question new experiments are being prepared.
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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