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ISSN Online: 2377-424X

International Heat Transfer Conference 4
August 31 - September 5, 1970, Paris-Versailles, France

A STUDY OF VAPOR BUBBLE GROWTH ON SURFACES

Get access (open in a dialog) DOI: 10.1615/IHTC4.230
pages 1-11

Sinopsis

The growth of vapor bubbles in an isothermal superheated liquid was studied both experimentally and theoretically. Uniform superheat was achieved by sudden decompression accomplished in 1.5 milliseconds. Some bubbles were always noticed immediately after depressurization. The bubble growth was studied with high-speed photography at 5000 pictures per second. The shapes of the bubbles depend on the fluid dynamics of the surrounding liquid and, hence, the Navier-Stokes equation was solved by adapting the Marker and Cell technique. The calculated shape of a growing bubble agreed satisfactorily with the experiment. Calculations performed on a non-growing, initially deformed bubble indicate that surface tension force can be a dominant factor causing bubble detachment.