DETERMINATION OF TEMPERATURES IN OSCILLATING BUBBLES: EXPERIMENTAL RESULTS


Abstract eng:
The surface temperatures of the plasma core at the final stages of the first contraction phase of spark generated bubbles oscillating under ordinary laboratory conditions in a large expanse of water are determined experimentally. The measurement method is based on the analysis of optical radiation from the bubbles and on an assumption that the plasma core is radiating as a black-body. It is found that the maximum surface temperatures of the plasma core range from 4300 K to 8700 K and these temperatures decrease with a bubble size.

Publisher:
Institute of Thermomechanics AS CR, v.v.i., Praha
Conference Title:
Conference Title:
Engineering Mechanics 2016
Conference Venue:
Svratka, CZ
Conference Dates:
2016-05-09 / 2016-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.



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 Record created 2016-08-16, last modified 2016-08-16


Original version of the author's contribution as presented on CD, id 141, section FLU.:
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