POD方法在扁管管翅式换热器研究中的应用  

Application of POD Reduced-order Model in Heat Transfer Performance of Flat Tube Bank Fin Heat Exchanger

作　　者：王烨[1,2] 王艺[3] 胡文婷[1] 王良璧[2] WANG Ye;WANG Yi;HU Wenting;WANG Liangbi(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Key Laboratory of Railway Vehicle Thermal Engineering,Ministry of Education of China,Lanzhou 730070,China;National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology,China University of Petroleum（Beijing）,Beijing 102249,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]铁道车辆热工教育部重点实验室,甘肃兰州730070 [3]中国石油大学(北京)机械与储运工程学院油气管道输送安全国家工程实验室、城市油气输配技术北京市重点实验室,北京102249

出　　处：《计算物理》2018年第5期587-596,共10页Chinese Journal of Computational Physics

基　　金：国家自然科学基金(51476073,51576210,51266004);甘肃省自然科学基金(1308RJZA151)资助项目

摘　　要：针对复杂流动与传热现象的扁管管翅式换热器板芯结构构建特征正交分解（POD）低阶模型,数值分析不同参数组合的传热特性并与有限容积法（FVM）计算结果进行比对.结果表明：POD计算结果与FVM计算结果间的相对偏差平均值在5.25%以内,但计算速度比FVM提高了164.78~2 021倍.所得结论对于扁管管翅式换热器结构参数设计和运行优化有理论参考价值.Reduced-order model of proper orthogonal decomposition method（ POD） was established to analyzed performance of fluid flow and heat transfer in flat tube bank fin heat exchanger. Numerical results of POD were compared with those of FVM. It indicates that average relative error between POD results and FVM results is no more than 5. 7% while computational speed is improved 164. 78-2021 times. Conclusion is of theoretical meaning for optimizing heat exchanger structure and running mode in engineering.

关 键 词：特征正交分解 低阶模型 扁管 管翅式换热器 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]