串列叶栅缝隙射流对分离流动及叶栅性能影响的研究

推进技术 ›› 2018, Vol. 39 ›› Issue (12): 2728-2736.

串列叶栅缝隙射流对分离流动及叶栅性能影响的研究

刘汉儒,岳少原,王掩刚,张俊

西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072

发布日期:2021-08-15
基金资助:
国家自然科学基金(51376150；51506179)。

Investigation for Effects of Slot Jet of Tandem Cascade on Separation Flow and Cascade Performance

School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China,School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China,School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China and School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究串列叶栅前后叶缝隙流作用对流动分离和叶栅性能影响机制，通过非定常数值计算分析了串列叶栅轴向重合度和节距系数两种缝隙参数组合对高负荷压气机串列叶栅在大攻角11°下性能影响以及缝隙流掺混作用下前后叶流动分离的时空演化机制的影响规律，并且提出了缝隙流对串列叶栅流动及性能影响的综合性参数-缝隙收缩比。研究结果表明:轴向重合度在-0.022～0.023，节距系数在0.6～0.9时，串列叶栅能取得较好气动性能；在缝隙非定常吹除作用下，后叶吸力面分离泡被周期性抑制，前叶吸力面分离泡受缝隙射流源的影响较弱；提出的缝隙收缩比作为综合匹配参数可以更清晰揭示出串列叶栅有效工作条件，在亚声速来流工况下，缝隙收缩比大于1是串列叶片能正常工作的前提，缝隙收缩比小于1，缝隙加速作用消失，叶栅性能较差，最佳的缝隙收缩比范围是1.1～1.4。

关键词: 串列叶栅；非定常流动；分离泡；压力波动特征；缝隙收缩比

Abstract: To investigate the effects of slot jet of tandem cascade on the separation and cascade performance，the unsteady numerical simulation has been utilized to analyze the effects of axial overlap and pitch percent of tandem cascade on the cascade performance of one high-load compressor at large angle of attack 11°. The temporal-spatial evolution of the unsteady flow separation with the slot mixing flow was also investigated. One comprehensive parameter called slot contraction ratio was proposed to understand the influence of slot configuration on flow and separation. The results show that tandem blades can achieve good performance when the axial overlap is between -0.022 and 0.023 and the percent pitch is in the range of 0.6 to 0.9. Under the unsteady slow blowing，the separated bubbles on the suction surface of rear cascade are suppressed periodically while the influence of slot blowing on the front cascade is weak. The slot contraction ratio as one comprehensive parameter can reveal the effective working condition of the tandem cascade more clearly. Under the subsonic flow condition，contraction ratio greater than 1 is the prerequisite for the normal working of the tandem cascade. When the slot contraction ratio is less than 1，the slot acceleration effect disappears and the cascade performance got deteriorated. The optimal slot contraction ratio is between 1.1 and 1.4.

Key words: Tandem cascade；Unsteady flow；Separation bubbles；Pressure fluctuation；Slot contraction ratio

刘汉儒,岳少原,王掩刚,张俊. 串列叶栅缝隙射流对分离流动及叶栅性能影响的研究[J]. 推进技术, 2018, 39(12): 2728-2736.

LIU Han-ru,YUE Shao-yuan,WANG Yan-gang,ZHANG Jun. Investigation for Effects of Slot Jet of Tandem Cascade on Separation Flow and Cascade Performance[J]. Journal of Propulsion Technology, 2018, 39(12): 2728-2736.

参考文献

[1] 苗厚武, 高全满. 串列叶片的应用研究[J]. 航空动力学报, 1991, 6: 203-206.
[2] Bammert K, Beelte H. Investigations of an Axial Flow Compressor with Tandem Cascades[J]. Journal of Engineering for Gas Turbines and Power, 1980, 102: 971.
[3] Saha U K, Roy B. Experimental Investigations on Tandem Compressor Cascade Performance at Low Speeds[J]. Experimental Thermal and Fluid Science, 1997, 14: 263-276.
[4] Hasegawa H, Matsuoka A, Suga S. Development of Highly Loaded Fan with Tandem Cascade[R]. AIAA 2003-1065.
[5] Mcglumphy J, Ng W F, Wellborn S R, et al. 3D Numerical Investigation of Tandem Airfoils for a Core Compressor Rotor[J]. Journal of Turbomachinery, 2010, 132:281-291.
[6] 陶源, 于贤君, 刘宝杰. 跨声串列静子叶片匹配特性分析及其优化[J]. 航空动力学报, 2012, 27: 2278-2286.
[7] 魏巍, 刘波. 大弯角串列叶栅间隙效应数值研究[J]. 航空工程进展, 2013, 4: 443-449.
[8] Tesch A, Lange M, Vogeler K, et al. An Experimental Investigation of a Tandem Stator Flow Characteristic in a Low Speed Axial Research Compressor[R]. ASME 2014-GT-26104.
[9] 宋明哲, 袁巍, 李绍斌. 跨声速串列转子失速机制的数值研究[J]. 航空动力学报, 2016, 31(1): 124-135.
[10] 张龙新, 王松涛, 刘勋, 等. 主/被动流动联合控制技术对高负荷扩压叶栅流场结构及损失的影响[J]. 机械工程学报, 2016, 52(22): 161-167.
[11] 李紫良, 卢新根, 张燕峰, 等. 高压比离心压气机串列叶轮内部流动机理研究[J]. 推进技术, 2017, 38(10): 2393-2400. (LI Zi-liang, LU Xin-gen, ZHANG Yan-feng, et al. Mechanism of Highly-Loaded Centrifugal Compressor Stage with Tandem Impeller[J]. Journal of Propulsion Technology, 2017, 38(10): 2393-2400.)
[12] 宋召运, 刘波, 张鹏, 等. 弯掠优化对高负荷跨声速串列转子的影响分析[J]. 推进技术, 2018, 39(1): 23-32. (SONG Zhao-yun, LIU Bo, ZHANG Peng, et al. Analysis of Optimization of Lean and Sweep Influence on Highly Loaded Transonic Tandem Rotor[J]. Journal of Propulsion Technology, 2018, 39(1): 23-32.)
[13] Railly J W. An Investigation of the Flow Through Tandem Cascades[J]. Proceedings of the Institution of Mechanical Engineers, 1965, 180: 66-73.
[14] Railly J W, Deeb S D, Moore M J. Wake-Boundary Layer Interaction in Tandem Cascades[J]. Proceedings of the Institution of Mechanical Engineers, 1969, 184:101-124.
[15] Li Q, Wu H, Zhou S. Application of Tandem Cascade to Design of Fan Stator with Supersonic Inflow[J]. Chinese Journal of Aeronautics, 2010, 23: 9-14
[16] Sanger N. Analytical Study of the Effects of Geometric Changes on the Flow Characteristics of Tandem-Bladed Compressor Stators[R]. NASA TND-6264, 1971
[17] 王掩刚, 魏崃, 陈为雄. 大弯角串列叶型优化设计与数值分析[J]. 推进技术, 2014, 35(11): 1469-1474. (WANG Yan-gang, WEI Lai, CHEN Wei-xiong. Optimization and Numerical Simulation of High-Turning Tandem Cascade[J]. Journal of Propulsion Technology, 2014, 35(11): 1469-1474.)
[18] Hergt A, Siller U. About Transonic Compressor Tandem Design-a Principle Study[R]. ASME 2015-GT-42115.
[19] 杨霖, 滕金芳. 串列叶栅前后排叶型对叶片损失的影响[J]. 科学计数与工程, 2016, 16: 1671-1815.
[20] 程昊, 刘波, 李俊, 等. 轴流压气机串列叶栅参数优化研究[J]. 推进技术, 2017, 38(10): 2224-2234. (CHENG Hao, LIU Bo, LI Jun, et al. A Study of Parameter Optimization of Axial Compressor Tandem Cascade[J]. Journal of Propulsion Technology, 2017, 38(10):2224-2234.)
[21] 陆华伟, 康达, 张永超. 高负荷扩压叶栅二维非定常数值模拟[J]. 大连海事大学报, 2015, 41(2): 71-76.
[22] 张文龙, 袁巍, 张建, 等. 压气机二维叶栅涡脱落的数值模拟[J]. 航空动力学报, 2002, 17(5): 556-560.
[23] 郑新前, 侯安平, 周盛. 二维扩压叶栅非定常分离流控制途径探索[J]. 力学学报, 2003, 35(5): 599-605.
[24] 张华良, 董学智, 谭春青, 等. 扩压叶栅二维流动分离的数值模拟[J]. 工程热物理学报, 2008, 29(8):1297-1300.
[25] Canon G, Willinger R. Numerical Investigation of Flow Interference Effects in Tandem Compressor Cascades[R]. AIAA 2005-1053.
[26] Nezym V, Plupan G. A New Statistical-Based Correlation for the Compressor Tandem Cascade Parameters Effects on the Loss Coefficient[R]. ASME 2007-GT-27245.
[27] Mcglumphy J, Ng W F, Wellborn S, et al. Numerical Investigation of Tandem Airfoils for Subsonic Axial-Flow Compressor Blades[R]. IMECE 2007-43929.
[28] Shen C, Qiang X, Tend J. Numerical and Experimental Investigation of an Axial Compressor Flow with Tandem Cascade[J]. Journal of Thermal Science, 2012, 21(6):500–508.(编辑:史亚红)　　　　　　　　　　　　　　收稿日期:2017-10-18；修订日期:2017-12-13。基金项目:国家自然科学基金(51376150；51506179)。通讯作者:刘汉儒,男,博士,讲师,研究领域为叶轮机械不稳定流动,气动噪声及控制,仿生流动控制。 E-mail: hrliu@nwpu.edu.cn