On the profile of the liquid wedge underneath a growing vapour bubble and the reversal of the wall heat flux

Authors
Mitrovic, J
Citation
J. Mitrovic, On the profile of the liquid wedge underneath a growing vapour bubble and the reversal of the wall heat flux, INT J HEAT, 45(2), 2002, pp. 409-415
Citations number
15
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN journal
00179310 → ACNP
Volume
45
Issue
2
Year of publication
2002
Pages
409 - 415
Database
ISI
SICI code
0017-9310(200201)45:2<409:OTPOTL>2.0.ZU;2-0
Abstract
Combining mass and energy balances, a differential equation for the profile of a liquid wedge underneath a vapour bubble that is growing on a solid su rface is derived. It connects the spatial and temporal changes of the film (wedge) thickness with the spatial temperature changes and velocity of liqu id at the interface. Specifying particular conditions, the equation reduces to those from the literature. The paper brings further an illustrative exp lanation of why the wall heat flux in the wedge region may reverse its dire ction. (C) 2001 Elsevier Science Ltd. All rights reserved.