Numerical study of the temperature of cumulative jet formed as a result of laser-induced subcooled boiling at the end of the waveguide

IF 2.6 3区工程技术 Q2 ENGINEERING, MECHANICAL

International Journal of Heat and Fluid Flow Pub Date : 2025-01-25 DOI:10.1016/j.ijheatfluidflow.2025.109751

V.A. Kosyakov , R.V. Fursenko , V.M. Chudnovsky

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Abstract

In the present study a single act of laser-induced subcooled boiling at the end of a laser waveguide is studied numerically. This type of boiling is accompanied by the growth and rapid collapse of a single vapor bubble, which gives rise to a cumulative jet directed away from the waveguide endface. These jets have an elevated temperature which have a number of applications, particularly in medicine. This study offers a physical explanation for the elevated jet temperature observed during subcooled boiling. Dependencies of jet temperature, jet velocity and maximum vapor bubble size on the initial temperature distribution of the liquid are obtained. It is shown that the jet temperature is predominantly influenced by the volume of water heated at the initial stage but not evaporated in the course of the process due to insufficient temperature. On the contrary, the volume of evaporated liquid affects maximum bubble size and jet velocity but has almost no effect on the jet temperature.

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来源期刊

International Journal of Heat and Fluid Flow 工程技术-工程：机械

CiteScore

5.00

自引率

7.70%

发文量

131

审稿时长

33 days

期刊介绍： The International Journal of Heat and Fluid Flow welcomes high-quality original contributions on experimental, computational, and physical aspects of convective heat transfer and fluid dynamics relevant to engineering or the environment, including multiphase and microscale flows. Papers reporting the application of these disciplines to design and development, with emphasis on new technological fields, are also welcomed. Some of these new fields include microscale electronic and mechanical systems; medical and biological systems; and thermal and flow control in both the internal and external environment.