基于结构参数分析的Gyroid换热器性能  

Performance of Gyroid heat exchanger based on structural parameters analysis

作　　者：杨晓军[1] 张雪丽 李沛燃 YANG Xiaojun;ZHANG Xueli;LI Peiran(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学航空工程学院,天津300300

出　　处：《北京航空航天大学学报》2025年第4期1195-1204,共10页Journal of Beijing University of Aeronautics and Astronautics

基　　金：中央高校基本科研业务费专项资金(3122019187)。

摘　　要：为研究三重周期极小曲面(TPMS)在空气-燃油换热器中的流动换热特性,分析结构参数对换热器性能的影响。采用田口方法,针对壁厚、晶格大小和偏移尺寸3个结构参数,对努塞尔数和摩擦系数进行综合评估,并与参考的螺旋套管(TTHC)换热器性能进行对比。研究得出各个结构参数影响Gyroid换热器努塞尔数和摩擦系数方面的主次顺序,并利用矩阵分析法,确定了最优方案。结果表明:对于热侧出口温度,TTHC换热器比参考的Gyroid换热器最高降低13.13 K;对于压降,TTHC换热器比参考的Gyroid换热器降低3.02 kPa;对于性能评估系数,热侧通道最高为14.72,冷侧通道最高为0.78。In order to study the flow and heat transfer characteristics of triple periodic minimal surfaces(TPMS)in an air-fuel heat exchanger,the influence of structural parameters on the performance of the heat exchanger was analyzed.By using the Taguchi method,the Nusselt number and friction coefficient were comprehensively evaluated for the three structural parameters of wall thickness,unit cell size,and offset size and compared with the performance of a tube-in-tube helical coil(TTHC)heat exchanger.The primary and secondary order of each structural parameter affecting the Nusselt number and friction coefficient of the Gyroid heat exchanger was obtained,and the optimal scheme was determined by using the matrix analysis method.The results show that compared with that of the TTHC heat exchanger,the hot-side outlet temperature of the Gyroid heat exchanger is reduced by up to 13.13 K,and the pressure drop of the Gyroid heat exchanger is reduced by 3.02 kPa.The highest performance evaluation coefficient of the hot-side channel is 14.72,and that of the cold-side channel is 0.78.

关 键 词：Gyroid换热器 螺旋套管换热器 田口方法 结构参数 矩阵分析法 

分 类 号：TK124[动力工程及工程热物理—工程热物理]