The study of laser induced cavitation dynamics using computer simulation

Abstract

Cavitation is a highly active area of research, attracting attention due to its fundamental significance and wide-ranging practical applications. In medicine, cavitation has proven to be valuable in several innovative procedures, including non-invasive intraocular surgery, precise drug delivery within the cardiovascular system, the effective disintegration of kidney stones, and the development of needle-free injection techniques, particularly for administering small volumes of medication. Beyond its medical applications, cavitation is also instrumental in various industrial processes, such as ultrasonic cleaning, material surface treatment, and the enhancement of efficiency in marine propellers and hydraulic turbines. Understanding the intricate dynamics of cavitation bubbles is essential for optimizing these applications and mitigating potential adverse effects, such as erosion and material fatigue.
In our study, we investigate the dynamics of a laser-generated cavitation bubble near a solid wall. By employing finite volume method (FVM) computer modeling, we simulate and analyze the complex behavior of the bubble. The research includes a detailed examination of the shock wave generated during the bubble's collapse and the distribution of its parameters, such as pressure, temperature, and velocity fields. These parameters are crucial for assessing the impact on surrounding structures and materials. Our findings contribute to a more comprehensive understanding of cavitation phenomena, offering valuable insights that could lead to advancements in the safety, precision, and efficiency of various cavitation-based technologies and applications.
The study was supported by a grant from the Russian Science Foundation No. 20-72-10161

Speaker

Ivan N. Shishkov
Bauman Moscow State Technical University, 2nd Baumanskaya Street 5, 105005 Moscow, Russia
Russia

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