摘要
通过合理简化,建立了百叶窗翅片散热器的耦合传热模型,利用大型CFD软件FLUENT对具有不同结构参数的百叶窗散热器的流体流动和传热性能进行研究。将数值模拟结果与文献试验关联式计算结果进行对比,验证了数值模拟方法的正确性。分析了百叶窗翅片主要结构参数(百叶窗间距、百叶窗倾角、翅片间距、翅片宽度等)对传热因子j和摩擦因子f的影响,并利用公式j/f^(1/3)计算了其流体流动和传热的综合性能。
Numerical simulations for the louvered fin heat exchanger were carried out using coupled heat transfer model with the CFD software FLUENT.The characteristics of the fluid flow and heat transfer in the louvered fin radiator under different geometrical parameters were analyzed.The numerical simulation results were compared with experimental correlation results,and the accuracy of the numerical simulation results are verified.The effects of structure parameters such as：louver pitch,louver angle,fin pitch,fin width on Colburn factor j and friction factor f were analyzed.And the comprehensive performance was evaluated by calculating j/f^（1/3）.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2011年第10期1727-1730,共4页
Journal of Engineering Thermophysics
基金
河南省杰出人才创新基金项目(No.0621001600)
关键词
车辆散热器
百叶窗翅片
耦合传热
传热因子
摩擦因子
vehicle radiator
louvered fin
coupled heat transfer
Colburn factor
friction factor
