In this paper, a novel engineering platform for throughflow analysis based on streamline curvature approach is developed for the research of a 5-stage compressor. The method includes several types of improved loss and...In this paper, a novel engineering platform for throughflow analysis based on streamline curvature approach is developed for the research of a 5-stage compressor. The method includes several types of improved loss and deviation angle models, which are combined with the authors' adjustments for the purpose of reflecting the influences of three-dimensional internal flow in high-loaded multistage compressors with higher accuracy. In order to validate the reliability and robustness of the method, a series of test cases, including a subsonic compressor P&W 3S1, a transonic rotor NASA Rotor 1B and especially an advanced high pressure core compressor GE E^3 HPC, are conducted. Then the computation procedure is applied to the research of a 5-stage compressor which is designed for developing an industrial gas turbine. The overall performance and aerodynamic configuration predicted by the procedure, both at design- and part-speed conditions, are analyzed and compared with experimental results, which show a good agreement. Further discussion regarding the universality of the method compared with CFD is made afterwards. The throughflow method is verified as a reliable and convenient tool for aerodynamic design and performance prediction of modern high-loaded compressors. This method is also qualified for use in the further optimization of the 5-stage compressor.展开更多
根据超临界二氧化碳(supercritical carbon dioxide,SCO_(2))的物性特点,调用美国国家标准技术研究所(national institute of standards and technology,NIST)发布的二氧化碳物性参数,开发了SCO_(2)离心压缩机一维设计及性能预测的程序...根据超临界二氧化碳(supercritical carbon dioxide,SCO_(2))的物性特点,调用美国国家标准技术研究所(national institute of standards and technology,NIST)发布的二氧化碳物性参数,开发了SCO_(2)离心压缩机一维设计及性能预测的程序。利用该程序完成了-10 MW SCO_(2)布雷顿循环发电系统中的分流压缩机气动设计以及不同转速下的性能预测,并结合数值计算与流场分析,结果表明:在设计转速下,一维预测结果与三维数值模拟所得的压气机性能结果在小流量区域变化趋势与数值大小吻合较好,但是在堵塞工况点附近两者存在一定的偏差。在其他转速下,一维预测结果与三维数值模拟所得的压气机性能结果吻合较好,表明该一维性能预测能较好预测SCO_(2)离心压缩机的变工况运行特性。展开更多
基金supported by SEDRIand the National Natural Science Foundation of China(Grant No.51136003)
文摘In this paper, a novel engineering platform for throughflow analysis based on streamline curvature approach is developed for the research of a 5-stage compressor. The method includes several types of improved loss and deviation angle models, which are combined with the authors' adjustments for the purpose of reflecting the influences of three-dimensional internal flow in high-loaded multistage compressors with higher accuracy. In order to validate the reliability and robustness of the method, a series of test cases, including a subsonic compressor P&W 3S1, a transonic rotor NASA Rotor 1B and especially an advanced high pressure core compressor GE E^3 HPC, are conducted. Then the computation procedure is applied to the research of a 5-stage compressor which is designed for developing an industrial gas turbine. The overall performance and aerodynamic configuration predicted by the procedure, both at design- and part-speed conditions, are analyzed and compared with experimental results, which show a good agreement. Further discussion regarding the universality of the method compared with CFD is made afterwards. The throughflow method is verified as a reliable and convenient tool for aerodynamic design and performance prediction of modern high-loaded compressors. This method is also qualified for use in the further optimization of the 5-stage compressor.
文摘根据超临界二氧化碳(supercritical carbon dioxide,SCO_(2))的物性特点,调用美国国家标准技术研究所(national institute of standards and technology,NIST)发布的二氧化碳物性参数,开发了SCO_(2)离心压缩机一维设计及性能预测的程序。利用该程序完成了-10 MW SCO_(2)布雷顿循环发电系统中的分流压缩机气动设计以及不同转速下的性能预测,并结合数值计算与流场分析,结果表明:在设计转速下,一维预测结果与三维数值模拟所得的压气机性能结果在小流量区域变化趋势与数值大小吻合较好,但是在堵塞工况点附近两者存在一定的偏差。在其他转速下,一维预测结果与三维数值模拟所得的压气机性能结果吻合较好,表明该一维性能预测能较好预测SCO_(2)离心压缩机的变工况运行特性。
