The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2015
Session ID : B213
Conference information
B213 Visualization Analysis of the Boiling Characteristics during the Water Subcooled Flow Boiling in Low Pressure
Kazuhiro KaihoKenta TuchieNaoki MiyanoKoji EnokiTomio Okawa
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
In the subcooled flow boiling, bubble size is important in calculating the vaporization rate accurately. On the surface, a number of bubbles that are different size are generated. If the bubble size is assumed to be uniform, a serious error may be caused in the numerical simulation. In this study, considering bubble size distribution, the bubble size are predicted by the gamma distribution. It was demonstrated that the gamma distribution satisfactorily describes the bubble distribution data. Furthermore, correlations were developed for the dimensionless bubble size and shape parameter to enable accurate prediction of them in the subcooled flow boiling.
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© 2015 The Japan Society of Mechanical Engineers
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