摘要
本文详细讨论了多孔介质模型在管壳式换热器数值模拟中的应用,开发了一套能自动生成多孔介质特性参数的通用程序。该程序主要基于三维交错网格及SIMPLE算法,然后运用该模型,采用改进的κ-ε模型和壁面函数法,对换热器壳侧的湍流流动进行了数值模拟。计算结果与换热器冷态实验结果符合良好,表明该模型和计算方法是切实可行的。
In this paper, we thoroughly discussed the application of porous media and distributed resistance modei in numerical simulation of shell-and-tube heat exchanges, and developed a general program on the basis of three-dimensional cylindrical coordinates with collocated grid system and SIMPLE algorithm, which can calculate porous media characteristic parameters automatically. In conjuction with wall function approach, we simulated turbulent fluid flow in the shell side of heat exchangers. Good agreement is obt...
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2004年第S1期167-169,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.50076034)
国家重点基础规划项目((32000026303)
关键词
管壳式换热器
多孔介质模型
数值模拟
shell-and-tube heat exchanges
porous media and distributed resistance modei
numer-ical simulation
