沈阳航空航天大学学报2024，Vol.41Issue(1)：1-8,8.DOI:10.3969/j.issn.2095-1248.2024.01.001
涡轮叶片气热耦合壁温及压力分布计算与分析
Conjugate heat transfer simulation and analysis of wall temperature and pressure distribution on a turbine blade
摘要
Abstract
Established a coupling analysis numerical simulation platform for air-cooled turbine blades,and a three-dimensional conjugate heat transfer numerical simulation for radial air-cooled MARK II blades was carried out using the conjugate heat transfer method.The multi-field coupling characteris-tics of the air-cooled turbine blades were analyzed,and the numerical results were compared with the experimental results.The results show that the choice of turbulence model affects the temperature distri-bution but has little influence on the pressure distribution on the blade surface;Among the six turbu-lence models selected,the SST k-ω turbulence model can simulate the flow field better,and the tem-perature and pressure on blade surface are the closest to the test results,which meets the engineering calculation requirements.When the total temperature at the turbine inlet is non-uniform in the radial di-rection,a local high-temperature zone is formed at the trailing edge of the blade,which increases the temperature gradient on the blade.Therefore,the cooling method can be improved to enhance the blade strength.关键词
涡轮叶片/气热耦合/流场结构/数值仿真/湍流模型Key words
turbine blade/conjugate heat transfer/flow field structure/numerical simulation/turbu-lence model分类
航空航天引用本文复制引用
李卓轩,沙云东,骆丽..涡轮叶片气热耦合壁温及压力分布计算与分析[J].沈阳航空航天大学学报,2024,41(1):1-8,8.基金项目
两机专项子项(项目编号:JH2021001G) （项目编号:JH2021001G）
