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Holographic Interferometry Studies of the Temperature Field near a Condensing Bubble

  • Y. M. Chen
  • F. Mayinger
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)

Abstract

For a better understanding of the mechanism of bubble collapse, holographic interferometry combined with high-speed cinematography was used as measuring technique to study the temperature field near a condensing bubble.

To ensure well-defined reproducible conditions, experiments have been carried out by injecting single vapour bubbles into subcooled liquid through a nozzle. The experiments were performed for a range of pressure from 0.25 to 4 bar, for subcoolings from 5 to 50 K and for initial bubble diameters of about 2 mm. Freon 113 and Ethanol were used as test fluids.

To evaluate the axisymmetric temperature field around the bubble from the interference fringe field, the methods of Abel-integral are not sufficient. A correction procedure considering the light deflection caused by the local temperature gradient has been developed and applied to calculate the heat transfer coefficient. Calibration tests with a heated solid sphere showed that the experimental results agree with additional thermocouple measurements to ± 10%.

Some interferograms and the experimental results are presented.

Keywords

Heat Transfer Coefficient Vapour Bubble Holographic Interferometry Bubble Collapse Subcooled Liquid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag, Berlin, Heidelberg 1985

Authors and Affiliations

  • Y. M. Chen
    • 1
  • F. Mayinger
    • 1
  1. 1.Lehrstuhl A für ThermodynamikTechnische Universität MünchenFederal Republic of Germany

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