摘要
对单面加热矩形通道热入口段的层流对流换热问题进行了数值模拟研究,给出了不同截面比的局部努赛尔数。推导出单面加热时的场协同方程,以此分析了不同截面比下加热边界条件对努赛尔数的影响规律。
A numerical study is conducted for laminar flow heat transfer in rectangular ducts in the
thermal entrance region with one side heated and three sides adiabatic. The local Nusselt numbers
are obtained and compared for different aspect ratios. Field coordination equations are derived for the
one side heated thermal boundary condition. Effects of thermal boundary condition and aspect ratio
on Nusselt number are discussed and analyzed from the view of field coordination.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2004年第3期478-480,共3页
Journal of Engineering Thermophysics
基金
国家高技术研究发展计划(863计划项目 No.2002AA744042)
高等学校博士学科点专项科研基金
关键词
矩形通道
对流换热
层流入口段
场协同
rectangular duct
convective heat transfer
thermal entrance region
field coordination
