Bubble departure frequency in forced convective subcooled boiling flow

Situ, R, Ishii, M, Hibiki, T, Tu, J, Yeoh, G and Mori, M 2008, 'Bubble departure frequency in forced convective subcooled boiling flow', International Journal of Heat and Mass Transfer, vol. 51, pp. 6268-6282.


Document type: Journal Article
Collection: Journal Articles

Title Bubble departure frequency in forced convective subcooled boiling flow
Author(s) Situ, R
Ishii, M
Hibiki, T
Tu, J
Yeoh, G
Mori, M
Year 2008
Journal name International Journal of Heat and Mass Transfer
Volume number 51
Start page 6268
End page 6282
Total pages 14
Publisher Pergamon
Abstract Forced convective subcooled boiling flow experiments were conducted in a vertical upward annular channel. Water was used as the testing fluid, and the tests were performed at atmospheric pressure. A high-speed digital video camera was applied to capture the dynamics of the bubble nucleation process. Bubble departure frequencies were obtained from the video for a total of 58 test conditions. The non-dimensional analysis was performed on the current data as well as available data from literature. Existing models and correlations were compared with the experimental data of bubble waiting time, growth time, and departure frequency. The correlations developed for pool boiling flow do not work well for forced convective subcooled boiling flow, while the models proposed for subcooled boiling flow cannot predict the bubble departure frequency in wide experimental ranges. Dimensionless bubble departure frequency is correlated with non-dimensional nucleate boiling heat flux. The new correlation agrees reasonably well with existing experimental data at lower wall superheat.
Subject Computational Heat Transfer
DOI - identifier 10.1016/j.ijheatmasstransfer.2008.04.028
Copyright notice © 2008 Elsevier Ltd. All rights reserved.
ISSN 0017-9310
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