Heat Transfer Characterization of TPMS Heat Exchangers Applied to the Aerospace Field  

作　　者：Nan Li Miao Wang Jingwen Zhao Kechun Sun Cheng Bi Mu Du Ersheng You Mingyang Yang 

机构地区：[1]School of Civil Engineering,Luoyang Institute of Science and Technology,Luoyang,471023,China [2]Henan Key Laboratory of Green Building Materials Manufacturing and Intelligent Equipment,Luoyang,471023,China [3]Xi’an Special Equipment Inspection Institute,Xi’an,710065,China [4]Institute for Advanced Technology,Shandong University,Jinan,250061,China [5]National Key Laboratory of Nuclear Reactor Technology,Nuclear Power Institute of China,Chengdu,610004,China [6]School of Resources Engineering,Xi’an University of Architecture and Technology,Xi’an,710055,China

出　　处：《Frontiers in Heat and Mass Transfer》2025年第2期601-614,共14页热量和质量传递前沿(英文)

基　　金：supported by the Natural Science Basic Research Program of Shaanxi(Program No.2024JC-YBMS-449);Project ZR2022QE233 supported by Shandong Provincial Natural Science Foundation.

摘　　要：In exploring hypersonic propulsion,precooler combined engines require the development of lightweight,efficient,and compact heat exchangers(HX).As additive manufacturing technology continues to progress,triply periodic minimal surface(TPMS)structures,characterized by exceptionally high surface area to volume ratios and intricate geometric structures,have demonstrated superior heat transfer performance.This research examines the thermal-hydraulic(TH)behavior of FKS and Diamond as heat transfer structures under different Reynolds numbers through numerical simulations.The Nusselt number for FKS is 13.2%–17.6%higher than Diamond,while the friction factor for FKS is approximately 18.8%–29.3%higher.A detailed analysis of the internal flow mechanisms reveals that the flow pattern within TPMS can be summarized as cyclic convergence-separation-convergence.The fluid experiences constant disturbances from the structure in all spatial directions,generating strong turbulent mixing and large wall shear stresses,which significantly enhance heat transfer performance.

关 键 词：TPMS heat transfer THERMAL-HYDRAULIC mathematical equation 

分 类 号：V434[航空宇航科学与技术—航空宇航推进理论与工程]