| Citation: | WU Lei, QU Bin, JIANG Zhenyu, et al. Experimental and numerical study on the influence of tip injection on the aerodynamic performance of shrouded turbine blades with different shroud structures[J]. Journal of Aerospace Power, 2025, 40（5）：20220927 doi: 10.13224/j.cnki.jasp.20220927
|
The study on the improvement and optimization of shroud structure is one of the important directions in the field of gas turbine research. In order to study the influence of tip injection on the aerodynamic performance of shrouded turbine blades, four kinds of shrouds, including full shroud, partial shroud, trailing edge cutting optimized shroud and front and trailing edge cutting optimized shroud, were studied by plane cascade experiment. By comparing and analyzing relevant aerodynamic parameters of the four experimental shrouds with or without tip injection, the results showed that when the tip had cold air injection, the leakage flow at the inlet and outlet of the shroud cavity can be improved and the aerodynamic loss can be reduced. At the same time, the average total pressure loss of the trailing edge cutting optimized shroud was 24.8% lower than that of the partial shroud and 6.87% lower than that of the front and trailing edge cutting optimized shroud. The trailing edge cutting optimized shroud had better aerodynamic performance than the partial shroud and the front and trailing edge cutting optimized shroud.
| [1] |
SCHAUB U W,VLASIC E,MOUSTAPHA S H. Effect of tip clearance on the performance of a highly loaded turbine stage[R]. Paris,France: North Atlantic Treaty Organization,1993.
|
| [2] |
鄢景,杨自春. 动力涡轮有冠及无冠动叶栅顶部二次流的数值分析[J]. 燃气轮机技术,2011,24(2): 30-34. YAN Jing,YANG Zichun. Numerical analysis of tip secondary flow in rotor cascades with or without shroud in power turbine[J]. Gas Turbine Technology,2011,24(2): 30-34. (in Chinese doi: 10.3969/j.issn.1009-2889.2011.02.007
YAN Jing, YANG Zichun. Numerical analysis of tip secondary flow in rotor cascades with or without shroud in power turbine[J]. Gas Turbine Technology, 2011, 24(2): 30-34. (in Chinese) doi: 10.3969/j.issn.1009-2889.2011.02.007
|
| [3] |
高杰,郑群. 燃气轮机带冠叶片气热技术研究进展[J]. 中国科学: 技术科学,2015,45(11): 1130-1148. GAO Jie,ZHENG Qun. Advances in shrouded blade aerodynamics and heat transfer for gas turbines[J]. Scientia Sinica (Technologica),2015,45(11): 1130-1148. (in Chinese doi: 10.1360/N092014-00336
GAO Jie, ZHENG Qun. Advances in shrouded blade aerodynamics and heat transfer for gas turbines[J]. Scientia Sinica (Technologica), 2015, 45(11): 1130-1148. (in Chinese) doi: 10.1360/N092014-00336
|
| [4] |
ROSIC B,DENTON J D,CURTIS E M,et al. The influence of shroud and cavity geometry on turbine performance: an experimental and computational study: Part Ⅱ exit cavity geometry[J]. Journal of Turbomachinery,2008,130(4): 041002. doi: 10.1115/1.2777202
|
| [5] |
RAINS D A. Tip clearance flows in axial flow compressors and pumps[D]. Pasadena,US: California Institute of Technology,1954.
|
| [6] |
GIER J,STUBERT B,BROUILLET B,et al. Interaction of shroud leakage flow and main flow in a three-stage LP turbine[J]. Journal of Turbomachinery,2005,127(4): 649-658. doi: 10.1115/1.2006667
|
| [7] |
薛伟鹏,张华军,唐国庆,等. 涡轮叶尖流动模式和流动机理研究[J]. 推进技术,2020,41(8): 1730-1739. XUE Weipeng,ZHANG Huajun,TANG Guoqing,et al. Flow mode and mechanism of turbine blade tip[J]. Journal of Propulsion Technology,2020,41(8): 1730-1739. (in Chinese
XUE Weipeng, ZHANG Huajun, TANG Guoqing, et al. Flow mode and mechanism of turbine blade tip[J]. Journal of Propulsion Technology, 2020, 41(8): 1730-1739. (in Chinese)
|
| [8] |
POUAGARE M,WEINHOLD W. Tip leakage reduction through tip injection in turbomachines: AIAA 1986-1746 [R]. Huntsville,US: 22nd Joint Propulsion Conference,1986.
|
| [9] |
刘艳,张敏,张梦超,等. 带冠喷气涡轮叶栅气动性能研究[J]. 工程热物理学报,2017,38(1): 74-80. LIU Yan,ZHANG Min,ZHANG Mengchao,et al. Aerodynamic performance of shrouded turbine cascade with tip injection[J]. Journal of Engineering Thermophysics,2017,38(1): 74-80. (in Chinese
LIU Yan, ZHANG Min, ZHANG Mengchao, et al. Aerodynamic performance of shrouded turbine cascade with tip injection[J]. Journal of Engineering Thermophysics, 2017, 38(1): 74-80. (in Chinese)
|
| [10] |
周治华,陈绍文,兰云鹤,等. 叶顶不同位置喷气对涡轮间隙泄漏流动的影响[J]. 推进技术,2016,37(5): 879-885. ZHOU Zhihua,CHEN Shaowen,LAN Yunhe,et al. Effects of tip injection in different locations on clearance leakage flow of turbine[J]. Journal of Propulsion Technology,2016,37(5): 879-885. (in Chinese
ZHOU Zhihua, CHEN Shaowen, LAN Yunhe, et al. Effects of tip injection in different locations on clearance leakage flow of turbine[J]. Journal of Propulsion Technology, 2016, 37(5): 879-885. (in Chinese)
|
| [11] |
TESSIER J,VOGEL G. Influence of tip geometry on over tip leakage in shrouded rotor blades with cooling[R]. Charlotte,North Carolina,US: American Society of Mechanical Engineers,2017.
|
| [12] |
轩笠铭,邹正平. 叶顶喷气对涡轮叶尖泄漏流动的影响研究[C]//第五届空天动力联合会议暨中国航天第三专业信息网第41届技术交流会论文集(第三册). 南京: 中国科协航空发动机产学联合体,2020: 146-156.
|
| [13] |
毛宁,张冬阳,王雷,等. 全冠与部分冠轴流涡轮流动的数值模拟[J]. 热能动力工程,2012,27(1): 7-12,130. MAO Ning,ZHANG Dongyang,WANG Lei,et al. Numerical simulation of the flow in a fully-and-partially-shrouded axial flow turbine[J]. Journal of Engineering for Thermal Energy and Power,2012,27(1): 7-12,130. (in Chinese
MAO Ning, ZHANG Dongyang, WANG Lei, et al. Numerical simulation of the flow in a fully-and-partially-shrouded axial flow turbine[J]. Journal of Engineering for Thermal Energy and Power, 2012, 27(1): 7-12, 130. (in Chinese)
|
| [14] |
ABHARI R,KALFAS A,REBHOLZ P S,et al. Experimental and numerical study of the impact of a tip shroud leading and trailing edge cutback on the efficiency of a low pressure gas turbine stage[R]. Busan,Korea: Curran,2013.
|
| [15] |
PORRECA L,KALFAS A I,ABHARI R S. Optimized shroud design for axial turbine aerodynamic performance[J]. Journal of Turbomachinery,2008,130(3): 031016. doi: 10.1115/1.2777187
|
| [16] |
PORRECA L,KALFAS A I,ABHARI R S,et al. Interstage flow interactions and loss generation in a two-stage shrouded axial turbine[J]. Journal of Turbomachinery,2009,131(1): 011002. doi: 10.1115/1.2948961
|
| [17] |
潘炳林. 高负荷涡轮叶冠间隙流动传热机理及设计优化[D]. 哈尔滨: 哈尔滨工程大学,2021. PAN Binglin. Heat transfer mechanism and design optimization of high-load turbine blade tip clearance flow[D]. Harbin: Harbin Engineering University,2021. (in Chinese
PAN Binglin. Heat transfer mechanism and design optimization of high-load turbine blade tip clearance flow[D]. Harbin: Harbin Engineering University, 2021. (in Chinese)
|
| [18] |
单熠君,曾飞,李维. 涡轮转子叶片叶冠修形对涡轮气动性能的影响分析[J]. 航空科学技术,2019,30(1): 29-34. SHAN Yijun,ZENG Fei,LI Wei. Analysis of the effect of shapes of shrouded blade tip on turbine aerodynamic performance[J]. Aeronautical Science & Technology,2019,30(1): 29-34. (in Chinese
SHAN Yijun, ZENG Fei, LI Wei. Analysis of the effect of shapes of shrouded blade tip on turbine aerodynamic performance[J]. Aeronautical Science & Technology, 2019, 30(1): 29-34. (in Chinese)
|
| [19] |
毛宁. 涡轮叶冠密封容腔流及其与主流作用研究[D]. 北京: 中国科学院研究生院(工程热物理研究所),2011. MAO Ning. Study on flow in turbine shroud seal cavity and its interaction with mainstream[D]. Beijing: Institute of Engineering Thermophysics,Chinese Academy of Sciences,2011. (in Chinese
MAO Ning. Study on flow in turbine shroud seal cavity and its interaction with mainstream[D]. Beijing: Institute of Engineering Thermophysics, Chinese Academy of Sciences, 2011. (in Chinese)
|
| [20] |
刘盼年. 带冠涡轮叶栅间隙泄漏控制的实验与数值研究[D]. 大连: 大连理工大学,2014. LIU Pannian. Experimental and numerical study on clearance leakage control of turbine cascade with crown[D]. Dalian: Dalian University of Technology,2014. (in Chinese
LIU Pannian. Experimental and numerical study on clearance leakage control of turbine cascade with crown[D]. Dalian: Dalian University of Technology, 2014. (in Chinese)
|
DownLoad:
