航空学报2025，Vol.46Issue(16)：15-33,19.DOI:10.7527/S1000-6893.2025.31584
考虑椭圆孔组合偏转的冷却布局多维高效优化
Multi-dimensional and efficient optimization of cooling layout considering combination of oval hole inclination angles
摘要
Abstract
To deeply explore the multivariate design space considering the combination of oval hole inclination angles,and further enhance the aero-thermal performance of the squealer tip,the steady-state RANS numerical simulation method was employed to optimize the cooling layout on a squealer tip.The variation of the flow field and the resulting performance improvement were analyzed.More importantly,to accelerate the rate of engineering optimization,a high fast-converging optimization algorithm suitable for high-dimensional engineering problems was developed based on the framework of a classical evolutionary algorithm and advanced optimization operators.Following classical function test-ing,a mixed optimization of single objective and bi-objective was conducted.The results demonstrated that in the opti-mal structure,the spacing between cooling holes is reduced,the wall attachment performance is improved with el-evated positive axial inclination angles,and the coupling relationship between film coverage and cooling hole orienta-tion is better balanced.The film cooling effectiveness is increased by 79.9%,and the enhancement of stage efficiency reaches 0.054%in comparison to the benchmark structure.关键词
涡轮/凹槽叶顶/气膜冷却/椭圆孔/多目标优化Key words
turbine/squealer tip/film cooling/oval hole/multi-objective optimization分类
航空航天引用本文复制引用
郭嘉杰,陶志,宋立明,李军..考虑椭圆孔组合偏转的冷却布局多维高效优化[J].航空学报,2025,46(16):15-33,19.基金项目
国家科技重大专项(2019-Ⅱ-0008-0028) National Science and Technology Major Project(2019-Ⅱ-0008-0028) （2019-Ⅱ-0008-0028）
