航空学报2025，Vol.46Issue(5)：152-168,17.DOI:10.7527/S1000-6893.2024.31185
基于光滑粒子流体动力学法的流固共轭自然对流传热数值模拟
Numerical simulation of fluid-solid conjugate natural convection heat transfer based on SPH method
摘要
Abstract
Conjugate heat transfer problems are widespread in practical engineering.Traditional methods such as the Finite Difference Method(FDM)and the Finite Volume Method(FVM)have been widely applied to solve these prob-lems.The Smoothed Particle Hydrodynamics(SPH)method,a meshless particle method,offers advantages such as strong adaptability,suitability for analyzing complex structures,and high flexibility.Therefore,this method has seen extensive application and rapid development in fields such as ship design and geological disaster simulation.How-ever,although there have been some applications of the SPH method in conjugate heat transfer problems,there is currently limited research on simulating heat transfer in actual engineering scenarios involving different functional mate-rials,such as the simulation of heat transfer and heat-generating components.In view of this,we conduct numerical simulations of fluid-solid conjugate heat transfer using the SPH method.First,traditional test cases of natural convec-tion in a closed square cavity and horizontal annular convection are simulated.Then,the focus shifts to simulating natural convection cases involving heat transfer blocks and heat-generating blocks.The results show a high degree of agreement with traditional methods,demonstrating the adaptability and accuracy of the SPH algorithm in simulating conjugate heat transfer problems involving different functional materials.Finally,the simulation of a heat sink with fin structures is carried out,analyzing the impact of parameters such as the heat transfer ratio and heat generation ratio on the cooling performance.These results verify the significant adaptability and flexibility of the SPH method in han-dling complex cases,providing theoretical support and practical guidance for solving complex engineering problems in the future.关键词
数值模拟/共轭传热/光滑粒子流体动力学法/自然对流/翅片结构Key words
numerical simulation/conjugate heat transfer/smoothed particle hydrodynamics/natural convection/fin structure分类
航空航天引用本文复制引用
吕宏强,唐天成,包晨宇..基于光滑粒子流体动力学法的流固共轭自然对流传热数值模拟[J].航空学报,2025,46(5):152-168,17.基金项目
国家自然科学基金(12472236) National Natural Science Foundation of China(12472236) （12472236）
