COLLAPSE OF A CAVITATION BUBBLE GENERATED BY LOW VOLTAGE DISCHARGE IN WATER

0351856 - ÚT 2011 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Müller, M. - Unger, J. - Buďárek, T. - Zima, Patrik
COLLAPSE OF A CAVITATION BUBBLE GENERATED BY LOW VOLTAGE DISCHARGE IN WATER.
International Conference Experimental Fluid Mechanics 2010. Vol. 1. Liberec: Technical University of Liberec, 2010 - (Vít, T.; Dančová, P.), s. 423-426. ISBN 978-80-7372-670-6.
[International Conference Experimental Fluid Mechanics 2010. Liberec (CZ), 24.11.2010-26.11.2010]
Grant CEP: GA ČR GAP101/10/1428
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: cavitation bubble * collapse * discharge
Kód oboru RIV: BK - Mechanika tekutin

The article presents experimental results of the optical study of cavitation bubble collapse close to a solid boundary in water. The bubble was generated by discharge of two low-voltage capacitors. High-speed CCD camera was used to record the time evolution of the bubble size. High-power halogen lamp was used for illumination. The system was synchronized by pulse generator connected to an oscilloscope. The velocity of the re-entrant jet was estimated from the time resolved photography for three different maximum bubble sizes.
Trvalý link: http://hdl.handle.net/11104/0191510