Heterogeneous nucleate boiling over a flat surface has been studied through complete numerical simulations. During the growth and departure of the vapor bubble, the interface is tracked following a coupled level-set and volume of fluid approach. A microlayer evaporation model similar to Sato and Niceno [“A depletable microlayer model for nucleate pool boiling,” J. Comput. Phys. 300, 20–52 (2015)] has been deployed in this investigation. A detailed study of the changes in microlayer structure as a result of different modes of boiling scenario has been performed. The departure diameter is found to increase with an increase in substrate superheat. The predicted departure diameter has been compared with the available experimental and analytical results. A power-law curve has been obtained for depicting the growth rate of bubble depending on the degree of superheat at the wall. The space–time averaged wall-heat flux at different values of superheat temperature of substrate is obtained. Bubble growth during subcooled boiling at a low and intermediate subcooled degree has been observed through direct numerical simulations. The variations in bubble dynamics after departure in saturated and subcooled liquid states have been compared.
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December 2018
This article was originally published in
Journal of Heat Transfer
Research-Article
Bubble Lifecycle During Heterogeneous Nucleate Boiling
Vinod Pandey,
Vinod Pandey
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
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Gautam Biswas,
Gautam Biswas
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
e-mail: gtm@iitg.ernet.in
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
e-mail: gtm@iitg.ernet.in
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Amaresh Dalal,
Amaresh Dalal
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
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Samuel W. J. Welch
Samuel W. J. Welch
Department of Mechanical Engineering,
University of Colorado at Denver,
Denver, CO 80217;
University of Colorado at Denver,
Denver, CO 80217;
Health Sciences Center,
Denver, CO 80217
Denver, CO 80217
Search for other works by this author on:
Vinod Pandey
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
Gautam Biswas
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
e-mail: gtm@iitg.ernet.in
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
e-mail: gtm@iitg.ernet.in
Amaresh Dalal
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
Indian Institute of Technology Guwahati,
Guwahati 781 039, India
Samuel W. J. Welch
Department of Mechanical Engineering,
University of Colorado at Denver,
Denver, CO 80217;
University of Colorado at Denver,
Denver, CO 80217;
Health Sciences Center,
Denver, CO 80217
Denver, CO 80217
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received December 10, 2017; final manuscript received July 31, 2018; published online September 5, 2018. Editor: Portonovo S. Ayyaswamy.
J. Heat Transfer. Dec 2018, 140(12): 121503 (17 pages)
Published Online: September 5, 2018
Article history
Received:
December 10, 2017
Revised:
July 31, 2018
Citation
Pandey, V., Biswas, G., Dalal, A., and Welch, S. W. J. (September 5, 2018). "Bubble Lifecycle During Heterogeneous Nucleate Boiling." ASME. J. Heat Transfer. December 2018; 140(12): 121503. https://doi.org/10.1115/1.4041088
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