| Citation: | YANG X J，ZHANG X L，LI P R. Performance of Gyroid heat exchanger based on structural parameters analysis[J]. Journal of Beijing University of Aeronautics and Astronautics，2025，51（4）：1195-1204 （in Chinese） doi: 10.13700/j.bh.1001-5965.2023.0245
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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.
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