非牛顿环境流体降膜发展段流动和换热问题相似解

应用科学学报 ›› 2003, Vol. 21 ›› Issue (4): 381-384.

非牛顿环境流体降膜发展段流动和换热问题相似解

孙福涛, 刘志军, 刘凤霞, 史启才

大连理工大学化工机械系辽宁大连 116012

收稿日期:2002-09-19 修回日期:2002-11-28 出版日期:2003-12-10 发布日期:2003-12-10
作者简介:孙福涛(1973-),男,山东烟台人,硕士生.

A Similarity Solution to the Momentum and Heat Transfer of the Developing Section of the Non-Newtonian Environmental Falling Liquid Film

SUN Fu-tao, LIU Zhi-jun, LIU Feng-xia, SHI Qi-cai

Department of Chemical Machinery, Dalian University of Technology, Dalian 116012, China

Received:2002-09-19 Revised:2002-11-28 Online:2003-12-10 Published:2003-12-10

摘要/Abstract

摘要： 对非牛顿幂律型环境流体加速液膜中的流动和热量传递,建立一种数学模型,并引入合适的相似变换,将问题转化为边界层相似问题.利用打靶法解出数值解,并结合计算结果对降膜发展段的流动和换热进行了分析.

关键词: 降膜, 速度边界层, 温度边界层, 非牛顿环境流体, 发展段, 幂律模型, 相似解

Abstract: A mathematical model based on the momentum and heat transfer in the gravity driven falling liquid film of non Newtonian environmental flow is established. Similarity theory is applied to transform the problem into one of the similarity between boundary layers by introducing appropriate similarity transform. Shooting method is applied to get numerical results which are analyzed with the developing section of the falling film.

Key words: non-Newtonian environmental flow, falling film, power-law model, thermal boundary layer, developing section, momentum boundary layer, similarity solution

中图分类号:

TK124

孙福涛, 刘志军, 刘凤霞, 史启才. 非牛顿环境流体降膜发展段流动和换热问题相似解[J]. 应用科学学报, 2003, 21(4): 381-384.

SUN Fu-tao, LIU Zhi-jun, LIU Feng-xia, SHI Qi-cai. A Similarity Solution to the Momentum and Heat Transfer of the Developing Section of the Non-Newtonian Environmental Falling Liquid Film[J]. Journal of Applied Sciences, 2003, 21(4): 381-384.