Numerical and experimental method for studying cavitation during continuous laser heating of water

E. P. Dats^ab, A. V. Kulik^ac, M. A. Guzev^a, V. M. Chudnovskii<sup>a

a</sup> Institute for Applied Mathematics, Far Eastern Branch, Russian Academy of Sciences, Vladivostok
^b Vladivostok State University
^c Far Eastern Federal University, Vladivostok

Abstract: This paper presents new methods for studying laser cavitation near the tip of an optical fiber immersed in water. Using classical approaches in continuum mechanics, a mathematical model is proposed for calculating the temperature field during continuous laser exposure. A new experimental method for studying continuous laser heating and laser cavitation is proposed, allowing for the simultaneous observation of water heating and the growth of a vapor bubble that occurs during its overheating. The numerical simulation results presented within the proposed mathematical model are in good agreement with observed experimental data and can be used to construct and verify mathematical models of interphase heat and mass transfer caused by localized thermal exposure.

Key words: lasers, evaporation, cavitation, numerical simulation.

UDC: 532.5

MSC: Primary 35Q79; Secondary 76D07

Received: 22.09.2025
Accepted: 07.11.2025

DOI: 10.47910/FEMJ202514