Photo and acoustic emissions from the non-equilibrium phase transition at the interface during cavitation

Autor:	Shrivastava, Shamit, Cleveland, Robin O.
Rok vydání:	2019
Předmět:	Physics - Fluid Dynamics Condensed Matter - Materials Science Physics - Applied Physics
Druh dokumentu:	Working Paper
Popis:	This study investigates the emission of light and sound from cavitation caused by intense pressure pulses in water. Based on time-resolved measurements of (a) pressure waveform at the focus, (b) light scattering upon cavitation, (c) acoustic emission, and (d) photoemission (sonoluminescence) it is shown that emissions occur upon the creation or expansion as well as the collapse of the cavity. These results suggest that the thermodynamic irreversibility, resulting from non-equilibrium phase transition and changes in surface entropy, is a basis for photo and acoustic emissions during cavitation. Comment: 11 Pages 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1911.09452 Zobrazit plný text záznamu View this record from Arxiv