Abstract
There has been tried many methods how to generate single cavitation bubble. The purpose of these experiments is to observe the surface impact of collapsing cavitating bubbles. The most of method are based on spark to induced superheat limit of liquid. Here we compare the one of these methods – laser induced breakdown (LIB) with more correct mechanical way using ultrasound as generator. There is described the setup for ultrasound cavitation effecting the sessile bubble as well as random generated and moving bubble. We visualize the cavitation bubble using high speed camera of speed 180 kHz. There are observed interface instabilities as the ultrasound response.
Highlights
The cavitation is in the scope of industrial application, and biomedical such as medicine, biology, pharmacy, or tissue engineering
The resonating cavitation bubble can go to chaotic behaviour and collapse after a few cycles
There has been done a series of experiments as the ultrasound cavitation is random process
Summary
The cavitation is in the scope of industrial application, and biomedical such as medicine, biology, pharmacy, or tissue engineering. The very popular became ultrasonic cavitation in these days. It has a potential in drug delivering systems, cell walls disintegrations, or viruses and bacteria immobilization. It may seem that the subject dealing with cavitation has reoriented, as applications are concerned. It is not, in engineering applications with more research it has shifted toward solving direct interactions of cavitating bubbles. In engineering applications with more research it has shifted toward solving direct interactions of cavitating bubbles This take shape in creating novel resistant materials, testing and development of new, more resistant structures or layers which better withstand the action of cavitating bubbles and prolong the service life of products. The research moved to the mathematical modelling and physical analysing
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