Convective heat transfer coefficient in air/liquid-water/ice/solid-wall multi-phase system
The physical model currently used in ice accretion codes is based on the conservation of energy and mass within numerical cells along the ice-accreting surface. This type of model works reasonably well in rime icing conditions. However, the results are much less satisfactory in glaze icing conditions because the interaction between the air flow and the unfrozen surface water dynamics is neglected. Although the surface film flow generates a rough ice surface, almost all glaze icing models lack the physical motivation for the ice surface roughness. Instead, roughness is treated as an input parameter in the model. In this paper, we consider a physical model of the water film flow over a rough ice surface on an aluminum substrate, taking into account the interaction between the air and water flows. In the physical model, water is supplied at the bottom of the plane, and the velocity profile of the water film is determined by two driving forces, gravity and wind drag. In a previous paper, a model of air/water/ice/aluminum multi-phase system was considered to explain an initial aufeis morphology
Kazuto Ueno Masoud Farzaneh
NSERC/Hydro-Quebec/UQAC Industrial Chair on Atmospheric Icing of Power Network Equipment (CIGELE) and Canada Research Chair on Atmospheric Icing Engineering of Power Networks (INGIVRE), www.cigele.ca Universite du Quebec a Chicoutimi, Chicoutimi, QC, Canada
国际会议
The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)
重庆
英文
75
2011-05-08（万方平台首次上网日期，不代表论文的发表时间）