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Computational Thermal Sciences: An International Journal
ESCI SJR: 0.244 SNIP: 0.434 CiteScore™: 0.7

ISSN Druckformat: 1940-2503
ISSN Online: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.v2.i1.20
pages 19-31

NUMERICAL METHOD FOR SPHERICAL BUBBLE GROWTH IN SUPERHEATED LIQUIDS

Anthony J. Robinson
Department of Mechanical and Manufacturing Engineering, Parsons Building, Trinity College, Dublin, Ireland; and Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada
Frederic J. Lesage
Cégep de l'Outaouais
Ross L. Judd
Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada

ABSTRAKT

A simple mathematical model and numerical method have been developed which accurately predict the moving boundary problem associated with spherically symmetric phase growth in an unbounded medium. Spherically symmetric bubble growth curves in initially isothermal liquids have been generated for four test cases covering a range of system pressures and initial liquid superheats for two different fluids, water and R113. The influences of the input parameters have been scrutinized and the accuracy of the numerical solutions has been confirmed by comparison with analytic approximations and experimental measurements. The main objectives of the study are to present a straightforward mathematical and numerical treatment of the problem and to provide benchmark bubble growth curves in order to provide a stepping stone for the development of more complex bubble growth theories such as those required to predict bubble growth during nucleate pool boiling.


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