基于Solidworks Flow Simulation的换热器翅片形状对换热量影响研究  

Study on the Influence of Fin Shape on Heat Transfer Rate in Heat ExchangersBased on Solidworks Flow Simulation

作　　者：张蓬菲 李俊[1] 孙丽婷 张慧跃 张宇[1] ZHANG Pengfei;LI Jun;SUN Liting;ZHANG Huiyue;ZHANG Yu(Offshore Oil Engineering Co.,Ltd.,Tianjin 300451,China)

机构地区：[1]海洋石油工程股份有限公司,天津300451

出　　处：《山东化工》2025年第7期205-209,共5页Shandong Chemical Industry

摘　　要：利用Solidworks Flow Simulation软件,对不同翅片形状的翅片管式换热器进行数值模拟研究,探讨了在相同翅片面积、不考虑翅片厚度的前提下,翅片形状分别为正三角形、正方形、正六边形、正八边形、圆形时换热量的差异。通过建立不同翅片形状的翅片管式换热器三维模型,设定合理的边界条件和物理属性,在保证其他所有物理参数、材料属性保持不变的前提下,分析了不同翅片形状的翅片管式换热器的热传递过程,计算出热交换系数、热通量、壁面温度、流体平均温度等数值,从而总结换热量的差异,归纳出翅片形状带给换热量的影响。研究表明,翅片形状对换热器的换热量有显著影响,若翅片形状为边数更多的正多边形,即翅片更接近于圆形,则换热量更小。换热量趋于稳态后,通过提取相同迭代次数区间的换热量数值,计算区间内换热量数值方差,发现三角形至六边形换热稳定性渐变稳定,从六边形至圆形稳定性逐渐降低。此研究为翅片管式换热器设计优化提供了理论依据。This paper uses Solidworks Flow Simulation software to conduct a numerical simulation study of finned tube heat exchangers with different fin shapes.The study investigates the differences in heat transfer under the condition of the same fin surface area and without considering the fin thickness.The fin shapes considered include equilateral triangle,square,regular hexagon,regular octagon,and circle.By establishing 3D models of the finned tube heat exchangers with different fin shapes,reasonable boundary conditions and physical properties are set.Under the premise that all other physical parameters and material properties remain unchanged,the heat transfer process of finned tube heat exchangers with different fin shapes is analyzed.The heat exchange coefficients,heat flux,wall temperatures,and fluid average temperatures are calculated,and the differences in heat transfer are summarized to assess the influence of fin shape on heat transfer.The research shows that the shape of the fins has a significant impact on the heat transfer rate of the heat exchanger.When the fin shape is a regular polygon with more sides,i.e.,when the fin shape is closer to a circle,the heat transfer rate is smaller.After the heat transfer rate reaches a steady state,the variance of the heat transfer rate within the same iteration interval is calculated by extracting the heat transfer values from the interval.It was found that the heat transfer stability gradually improves from triangular to hexagonal fins,while the stability decreases from hexagonal to circular fins.This study provides a theoretical basis for the design optimization of finned tube heat exchangers.

关 键 词：翅片管式换热器 翅片形状 Solidworks Flow Simulation 换热量 CFD 数值模拟 

分 类 号：TQ051.5[化学工程] TE974.4[石油与天然气工程—石油机械设备]