Number of the records: 1
Measurement of the impulsive force generated by colapsing bubble close to a solid boundary
- 1.
SYSNO ASEP 0367963 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Measurement of the impulsive force generated by colapsing bubble close to a solid boundary Author(s) Müller, M. (CZ)
Unger, J. (CZ)
Holata, J. (CZ)
Zima, Patrik (UT-L) RIDNumber of authors 4 Source Title International Conference Experimental Fluid Mechanics 2011, 1. - Liberec : TU Liberec, 2011 / Vít T. ; Dančová P. ; Novotný P. - ISBN 978-80-7372-784-0 Pages s. 309-314 Number of pages 6 s. Publication form CD ROM - CD ROM Action Experimental Fluid Mechanics 2011 Event date 22.11.2011-25.11.2011 VEvent location Jičín Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords collapse ; bubble ; impact force Subject RIV BK - Fluid Dynamics R&D Projects GAP101/10/1428 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation 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. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2012
Number of the records: 1