摘要
讨论了热管换热器冷、热端共轭传热特性。根据热管内部相变传热特性,以热管内蒸汽温度作为独立变量,利用冷凝段与蒸发段热量守恒关系,将热管换热器分解成2个独立部分进行分析。针对热管壁面、冷端耦合传热特性,应用耦合源模型,借助Fluent软件计算热管换热器内流动与传热过程,并采用场协同原理对模拟结果进行分析。结果表明耦合源模型能够有效用于热管换热器、及类似结构的性能分析;耦合源模型与场协同原理结合是解决热管换热器等耦合传热及优化问题的有效方法。
Based on the brief introduction of conjugate heat transfer, the coupling characteristic of heat pipe heat exchanger （HPHE） was mentioned. According to the heat transfer characteristics and the energy conservation between condensation section and evaporation section, the two solution processes of these two parts in HPHE can be got separately by taking the vapor temperature inside the heat pipe as an independent variable. The coupled source model was used to solve the heat transfer of HPHE at the first time by introducing a source term. And then the temperature fields of heat pipe and fluid zones were got by using the coupling relation on the boundary. The coupled source model was numerically simulated by FLUNT. The numerical simulation which was analyzed from the view of field synergy principle indicates that the performance of HPHE can be analyzed with by the coupled source model effectively.
出处
《辽宁化工》
CAS
2010年第11期1148-1152,共5页
Liaoning Chemical Industry
关键词
耦合源
场协同原理
热管换热器
耦合传热
数值模拟
Coupling source
Field synergy principle
HPHE
Conjugate heat transfer
Numerical simulation
