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ARTICLE
WALL ORIENTATION EFFECT ON THE DETACHMENT OF A VAPOR BUBBLE
a Faculté de Mécanique, Laboratoire de Carburants Gazeux et Environnement, USTO.MB, ALGERIA, BP 1505, El-M’Naouer, Oran 31000, Algeria
b ENP Oran, Industrial Products and Systems Innovations Laboratory (IPSIL), Oran 31000, Algeria
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2017, 9, 1-7. https://doi.org/10.5098/hmt.9.14
Abstract
Boiling is influenced by a large number of parameters; the angle of orientation constitutes one of these parameters which have a positive impact on the heat transfer. The dynamic of the bubble plays a significant role in the improvement of heat transfer during boiling. For this reason, we are located on the bubble scale and we simulated the detachment of vapor bubble in the liquid water on a heated surface, when the angle of orientation varies from 0 to 180°. We followed the evolution of the sliding of the bubble; it appears that the thermal boundary layer is disturbed and that the heat transfer coefficient reached major proportions and the sliding velocity of the bubble depends on the orientation of the wall.Keywords
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