H形鳍片管传热性能的三维数值模拟计算

作者：童鲁海 日期：2007-10-25/span> 浏览：4333 查看PDF文档

H形鳍片管传热性能的三维数值模拟计算

童鲁海
(杭州职业技术学院 化学工程系，浙江 杭州 310018)

摘要：建立了H形鳍片管的三维物理模型，对鳍片管传热机理进行分析。利用大型通用有限元分析软件ANSYS的FLOTRAN模块，建立了热流耦合的有限元模型，对鳍片管的稳态传热过程进行了数值计算，得到了鳍片管内、外流体的温度场分布。在对鳍片高度和鳍片间距进行调整的基础上分析了高度和间距对换热效率的影响，提出了在此边界条件下对鳍片管优化的方案。
关键词：H形鳍片管；传热性能；数值模拟
中图分类号：TK229.92文献标识码：A文章编号：1001-4551(2007)10-0079-03

3D numerical analysis of heat transfer characteristics for Htype finned tube
TONG Luhai
(Department of chemical Engineering, Hangzhou Professional Technical College, Hangzhou 310018, China)
Abstract: Based on the analysis of the heat transfer mechanism for Htype finned tube，the 3D physical model was founded. Through the software of ANSYS/FLOTRAN, the FEM model of heatflow coupling was established and simulated. From the numerical simulation of heat transfer steadystate process above, the temperature field of liquid inside and outside was acquired. The effects of fin spacing and fin height on the heat transfer efficiency were analyzed, which provided a certain reference to the design and optimization of the structure of Htype finned tube.
Key words: Htype finned tube; heat transfer characteristics; numerical simulation
参考文献(Reference)：
［1］阎维平,孟雪梅，吕玉坤.电站锅炉鳍片管省煤器鳍片尺寸优化模型［J］.热能动力工程，2004，19（5）：498-501.
［2］ROMERO R, SEN M. Effect of fin spacing on convection in a plate fin and tube heat exchanger［J］. Heat Mass Transfer,2000,43(1):39-51.
［3］张天孙.传热学［M］.北京:中国电力出版社,2006.
［4］刘聿拯,袁益超,徐世泽，等.H形鳍片管束传热与阻力特性实验研究［J］.上海理工大学学报,2004,26（5）：457-460.
［5］张来,杜小泽,杨立军，等.开孔矩形翅片椭圆管流动与换热特性的数值研究［J］.工程热物理学报，2006，27（6）：990-992.
［6］王定标，向飒，魏新利.换热设备管板热应力的数值模拟及应用［J］.轻工机械，2004（3）：31-34.
［7］张朝晖.ANSYS 8.0热分析教程与实例解析［M］.北京:中国铁道出版社,2005.