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Heat Transfer Research

ISSN for PRINT: 1064-2285

Institutional price:	$2485.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

2004, Volume35

122 pages

DOI: 10.1615/HeatTransRes.v35.i56

Issue price - $674.00

Heat and Mass Transfer under the Conditions of Rapid Heating

P. A. Pavlov
Institute of Thermophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia

ABSTRACT

In superheating liquid at a rate of 10⁶−10⁷ K/sec, an anomalously high sensitivity of a heat flux to test conditions has been revealed. The characteristic features of heat exchange are due to the steep temperature dependence of the rate of bubble formation. The first bubbles appear and coalesce on a relatively more heated section of the wall. Further the vapor front propagates along the heater following the motion of the isotherm corresponding to intense nucleation. The model explains the nonmonotonic dependence of a heat flux on time.