摘要
对高粘度液体在正弦形波纹壁面上的自由降落和蒸发建立了分析模型。对控制微分方程及边界条件作无量纲处理,引入流函数,采用摄动展开得到了0级近似和一级近似的微分方程组,讨论了液膜的流动和传热特性与壁面之间的关系。
An approximate model for the flow and evaporation heat transfer of highly viscosity liquid films freely falling down vertical wavy plates is presented. The governing equations with their boundary conditions are firstly non-dimensionalized, and a dimensionless stream function is then introduced secondly. By perturbation expanding, zeroth and first order equations are obtained. The effect of the wave amplitude and number of the plate surface on film flow and heat transfer is discussed.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2006年第2期310-312,共3页
Journal of Engineering Thermophysics
基金
天津科技大学科研基金项目资助(No.20040212)
关键词
液膜
波纹表面
流动
传热
摄动
liquid film
wavy surface
flow
heat transfer
perturbation
