哈尔滨工程大学学报2025，Vol.46Issue(4)：745-754,10.DOI:10.11990/jheu.202309042
基于设计参数选取规律的涡轮宽工况性能研究
Performance of turbine under wide working conditions based on the selection law of design parameters
摘要
Abstract
Considering the selection laws for design parameters,a comparative study was conducted on the flow characteristics of turbines under multiple operating conditions,aiming to achieve high-efficiency operation of marine gas turbines across all operating conditions.The purpose is to address the flow mismatch between row-row compo-nents in turbines designed for wide-operating conditions.The study demonstrates that,for multistage power tur-bines,altering the flow angle has a greater influence on flow behavior than modifying the wedge angle.Increasing the outlet flow angle and reducing the trailing edge wedge angle of the stator,along with increasing the inlet flow angle and reducing the leading edge wedge angle of the rotor,can effectively reduce the performance loss of the tur-bine under low-loading conditions.Leveraging the derived selection laws for design parameters in wide-operating condition turbines,a multistage turbine is optimized,leading to a remarkable 45%reduction in entropy increase at the outlet of the second-stage stator under low operating conditions.Therefore,the performance of the turbine in wide-operating conditions is substantially improved.关键词
设计优化/宽工况/多级涡轮/叶型设计/涡轮优化/叶型参数化/涡轮流场Key words
design optimization/wide-operating conditions/multistage turbine/airfoil design/turbine optimization/blade parametrization/turbine flow field分类
能源与动力引用本文复制引用
霍东晨,高杰,李彦静,刘英洪..基于设计参数选取规律的涡轮宽工况性能研究[J].哈尔滨工程大学学报,2025,46(4):745-754,10.基金项目
国家科技重大专项(J2019-II-0009-0029). （J2019-II-0009-0029）
