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Thermal Sciences 2004. Proceedings of the ASME - ZSIS International Thermal Science Seminar II
June, 13-16, 2004, Bled, Slovenia

DOI: 10.1615/ICHMT.2004.IntThermSciSemin


ISBN Print: 978-9-61913-930-1

Mechanistic models for pool nucleate boiling heat transfer: input and validation

pages 53-68
DOI: 10.1615/ICHMT.2004.IntThermSciSemin.50
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ABSTRAKT

Correlations for nucleate boiling heat transfer should be improved, and eventually replaced, by the development of mechanistic simulations that include the non-uniform spacing and variable characteristics of the nucleation sites and nonlinear interactions between the sites. This paper discusses the interactions that should be included in simulations and some lessons from a first attempt to validate a particular simulation against experimental spatio-temporal data for wall temperature. Input data for nucleation site positions and characteristics are a particular problem and the prospects for obtaining this data from measurements that are independent of boiling are discussed.

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