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Title: Nanosecond near-spinodal homogeneous boiling of water superheated by a pulsed CO{sub 2} laser

Abstract

The fast boiling dynamics of superheated surface layers of bulk water cavitating under near-spinodal conditions during nanosecond CO{sub 2} laser heating pulses was studied using contact broad-band photoacoustic spectroscopy. Characteristic pressure-tension cycles recorded by an acoustic transducer at different incident laser fluences represent (a) weak random oscillations of transient nanometer-sized near-critical bubbles-precursors and (b) well-defined stimulated oscillations of micron-sized supercritical bubbles and their submicrosecond coalescence products. These findings provide an important insight into basic thermodynamic parameters, spatial and temporal scales of bubble nucleation during explosive liquid/vapor transformations in absorbing liquids ablated by short laser pulses in the thermal confinement regime.

Authors:
; ;  [1]
  1. Department of Physics, Arkansas State University, State University, Arkansas 72467-0419 (United States)
Publication Date:
OSTI Identifier:
21072405
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevE.75.036313; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABLATION; BOILING; BUBBLES; CARBON DIOXIDE LASERS; CAVITATION; COALESCENCE; HEAT TRANSFER; HEATING; LASER RADIATION; LAYERS; LIQUIDS; NUCLEATION; OSCILLATIONS; PHOTOACOUSTIC SPECTROSCOPY; PULSES; RANDOMNESS; VAPORS; WATER

Citation Formats

Kudryashov, Sergey I., Lyon, Kevin, and Allen, Susan D.. Nanosecond near-spinodal homogeneous boiling of water superheated by a pulsed CO{sub 2} laser. United States: N. p., 2007. Web. doi:10.1103/PHYSREVE.75.036313.
Kudryashov, Sergey I., Lyon, Kevin, & Allen, Susan D.. Nanosecond near-spinodal homogeneous boiling of water superheated by a pulsed CO{sub 2} laser. United States. doi:10.1103/PHYSREVE.75.036313.
Kudryashov, Sergey I., Lyon, Kevin, and Allen, Susan D.. Thu . "Nanosecond near-spinodal homogeneous boiling of water superheated by a pulsed CO{sub 2} laser". United States. doi:10.1103/PHYSREVE.75.036313.
@article{osti_21072405,
title = {Nanosecond near-spinodal homogeneous boiling of water superheated by a pulsed CO{sub 2} laser},
author = {Kudryashov, Sergey I. and Lyon, Kevin and Allen, Susan D.},
abstractNote = {The fast boiling dynamics of superheated surface layers of bulk water cavitating under near-spinodal conditions during nanosecond CO{sub 2} laser heating pulses was studied using contact broad-band photoacoustic spectroscopy. Characteristic pressure-tension cycles recorded by an acoustic transducer at different incident laser fluences represent (a) weak random oscillations of transient nanometer-sized near-critical bubbles-precursors and (b) well-defined stimulated oscillations of micron-sized supercritical bubbles and their submicrosecond coalescence products. These findings provide an important insight into basic thermodynamic parameters, spatial and temporal scales of bubble nucleation during explosive liquid/vapor transformations in absorbing liquids ablated by short laser pulses in the thermal confinement regime.},
doi = {10.1103/PHYSREVE.75.036313},
journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}