Affiliation:
1. State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, China
Abstract
Cavitation phenomena widely exist in many fields such as medical treatment,
chemical engineering, and hydraulic engineering. The boundary properties
have a great influence on the collapse characteristics of a cavitation
bubble. The interaction between a cavitation bubble and a boundary of
different properties is an important part in the cavitation erosion
mechanism. In this paper, cavitation bubbles under in-water pulse discharge
and cavitation erosion under ultrasonic vibration were used to study the
effect of a deformable boundary on the collapse characteristics of a
cavitation bubble, which reveals the cavitation-resistance performance of
different materials on the macroscopic scale. The main experimental results
showed that on a deformable boundary, the cavitation bubble does not
collapse toward the boundary in the later collapse stage compared with on
the rigid boundary. The collapse process of the cavitation bubble is
aggravated on the deformable boundary. In the condition of same cavitation
strength, the cavitation?s erosion loss amount on the rigid boundary
material is much higher than that on the deformable boundary material. The
experimental conclusions have an important reference value for the
development of cavitation erosion prevention and the exploration of
cavitation-resistance materials.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
2 articles.
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