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Cavitation due to an impacting sphere
Citation
De Graaf, KL and Brandner, PA and Pearce, BW and Lee, JY, Cavitation due to an impacting sphere, Journal of Physics Conference Series: 9th International Symposium on Cavitation, 6-10 December 2015, Lausanne, Switzerland, pp. 1-4. ISSN 1742-6588 (2015) [Refereed Conference Paper]
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Copyright Statement
Creative Commons Attribution 3.0 licence
DOI: doi:10.1088/1742-6596/656/1/012014
Abstract
Cavitation associated with the impact of a sphere on a flat surface is investigated
using high-speed photography. The sphere, of diameter 15 or 45 mm and made from Ertacetal®
or stainless steel, was fully submerged and accelerated using a spring-loaded mechanism to
achieve Reynolds numbers based on impact velocity and sphere radius of up to 7.2×104. The
static pressure and impact velocity were varied to achieve cavitation numbers ranging from
8.9 to 120.9. High-speed photography of the impacting sphere and induced cavitation bubble
was filmed at 105-140 kHz. A log law relationship was found between the non-dimensional
maximum bubble radius and the cavitation number. The relationship was modulated by the
material properties. Interaction between the sphere and the bubble was also noted.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | impact cavitation, sphere, bubble dynamics, high-speed imaging |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ship and platform structures (incl. maritime hydrodynamics) |
Objective Division: | Manufacturing |
Objective Group: | Transport equipment |
Objective Field: | Nautical equipment |
UTAS Author: | De Graaf, KL (Dr Katrina De Graaf) |
UTAS Author: | Brandner, PA (Professor Paul Brandner) |
UTAS Author: | Pearce, BW (Dr Bryce Pearce) |
UTAS Author: | Lee, JY (Mr Jun Lee) |
ID Code: | 106496 |
Year Published: | 2015 |
Web of Science® Times Cited: | 1 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2016-02-11 |
Last Modified: | 2018-04-05 |
Downloads: | 154 View Download Statistics |
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