Název: Measurement of the impulsive force generated by colapsing bubble close to a solid boundary
Autoři: Müller, M. ; Unger, J. ; Holata, J. ; Zima, Patrik
Typ dokumentu: Příspěvky z konference
Konference/Akce: Experimental Fluid Mechanics 2011, Jičín (CZ), 2011-11-22 / 2011-11-25
Rok: 2011
Jazyk: eng
Abstrakt: The article presents experimental results of the acoustical and optical study of cavitation bubble collapse close to a solid boundary in water. The bubble was generated by discharge of low-voltage capacitor into a couple of wires closing a simple circuit. Different distances from the solid wall and different maximum bubble radii were studied. The bubble radius was studied using time-resolved photography and by PVDF film sensor glued on the solid boundary. The illumination was provided by high-power led diode. Synchronization of the system was provided by pulse generator connected to an oscilloscope. The impact power of the bubble to the wall was estimated from the time-resolved photography of the bubble and from the PVDF film sensor signal. The PVDF film sensor calibration was performed by a pendulum test to estimate the impact force.
Klíčová slova: bubble; collapse; impact force
Číslo projektu: CEZ:AV0Z20760514 (CEP), GAP101/10/1428 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: International Conference Experimental Fluid Mechanics 2011, ISBN 978-80-7372-784-0

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0006694

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-80943


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference