Effects of Bionic Leading Edge on the Aerodynamic Performance of a Compressor Cascade at a Low Reynolds Number

XU Huafeng, ZHAO Shengfeng, WANG Mingyang, YANG Chengwu

热科学学报 ›› 2024, Vol. 33 ›› Issue (4) : 1272-1285.

PDF(13301 KB)
PDF(13301 KB)
热科学学报 ›› 2024, Vol. 33 ›› Issue (4) : 1272-1285. DOI: 10.1007/s11630-023-1920-x  CSTR: 32141.14.JTS-023-1920-x
气动

Effects of Bionic Leading Edge on the Aerodynamic Performance of a Compressor Cascade at a Low Reynolds Number

作者信息 +

Effects of Bionic Leading Edge on the Aerodynamic Performance of a Compressor Cascade at a Low Reynolds Number

Author information +
文章历史 +

摘要

在低雷诺数(Re)条件下获得高性能压气机叶型的关键在于有效调控附面层转捩及分离过程。本文以某高负荷增压级下压流道内正交叶片根部5%截面处的叶型为研究对象,并对原始叶型前缘进行仿生学造型设计。借助大涡模拟结合Omega涡识别方法,研究了仿生型前缘造型对低雷诺数下层流转捩及分离的响应特性,结果表明:在低雷诺数下,仿生型前缘造型显著改善了叶片的气动性能,有效抑制了分离泡的发展,减弱甚至消除了叶片尾缘的大尺度流动分离,从而减小了尾缘的流动堵塞。此外,本文进一步阐明了仿生型前缘造型对典型高负荷增压级叶型气动特性的调控机制,具体而言:仿生型前缘造型减弱了叶片表面涡动力学强度,减少了高水平速度脉动区域,进而降低湍流耗散带来的气动损失。上述研究结果对于低Re下增压级叶型的气动设计和流动调控具有重要的借鉴意义。

Abstract

To achieve high-performance compressor cascades at low Reynolds number (Re), it is important to organize the boundary layer transition and separation processes efficiently and reasonably. In this study, the airfoil is focused on at a 5% blade height at the root of the orthogonal blade in the downflow passage of the high-load booster stage. The bionics modeling design is carried out for the leading edge of the original blade cascade; the response characteristics of laminar transition and separation to blades with different leading edge shapes at low Reynolds numbers are studied by using large eddy simulations combined with Omega vortex identification. The findings of this study demonstrate that bionic leading edge modeling can significantly improve the aerodynamic performance of blades at low Reynolds numbers. The blades effectively suppress the formation of separation bubbles at low Reynolds numbers and weaken or even eliminate large-scale flow separation at the trailing edge. In addition, the blades can weaken the vortex intensity on the blade surface, reduce the areas of high-velocity fluctuations, and minimize aerodynamic losses caused by turbulence dissipation. These results should serve as a valuable reference for the aerodynamic design and flow control of the high-load booster stage blade at low Re.

关键词

low Reynolds number / booster stage / bionic leading edge / large eddy simulation

Key words

low Reynolds number / booster stage / bionic leading edge / large eddy simulation

引用本文

导出引用
XU Huafeng , ZHAO Shengfeng , WANG Mingyang , YANG Chengwu. Effects of Bionic Leading Edge on the Aerodynamic Performance of a Compressor Cascade at a Low Reynolds Number[J]. 热科学学报, 2024, 33(4): 1272-1285 https://doi.org/10.1007/s11630-023-1920-x
XU Huafeng , ZHAO Shengfeng , WANG Mingyang , YANG Chengwu. Effects of Bionic Leading Edge on the Aerodynamic Performance of a Compressor Cascade at a Low Reynolds Number[J]. Journal of Thermal Science, 2024, 33(4): 1272-1285 https://doi.org/10.1007/s11630-023-1920-x

参考文献

[1] Pantelidis K., Hall C., Reynolds number effects on the aerodynamics of compact axial compressors, Stockholm, Sweden, 2017.
[2] Horton H.P., A semi-empirical theory for the growth and bursting of laminar separation bubbles, Aeronautical Research Council, 1969.
[3] Arena A.V., Mueller T.J., Laminar separation, transition, and turbulent reattachment near the leading edge of airfoils. AIAA Journal, American Institute of Aeronautics and Astronautics, 1980, 18(7): 747–753.
[4] Tselepidakis D.P., Kim S., Modeling and prediction of the laminar leading-edge separation and transition in a blade-cascade flow. American Society of Mechanical Engineers Digital Collection, 1996.
[5] Li Z., Ju Y., Zhang C., Parallel large-eddy simulation of subsonic and transonic flows with transition in compressor cascade. Journal of Propulsion and Power, 2019, 35(6): 1163–1174.
[6] Li Z., Ju Y., Zhang C., Quasi-wall-resolved large eddy simulation of transitional flow in a transonic compressor rotor. Aerospace Science and Technology, 2022, 126: 107620.
[7] Zhang X., Hodson H., Combined effects of surface trips and unsteady wakes on the boundary layer development of an ultra-high-lift LP turbine blade. Journal of Turbomachinery, American Society of Mechanical Engineers Digital Collection, 2005, 127(3): 479–488.
[8] Zhou Y., Wang Z.J., Effects of surface roughness on separated and transitional flows over a wing. AIAA Journal, American Institute of Aeronautics and Astronautics, 2012, 50(3): 593–609.
[9] Satta F., Simoni D., Ubaldi M., Zunino P., Bertini F., Loading distribution effects on separated flow transition of ultra-high-lift turbine blades, Journal of Propulsion and Power. American Institute of Aeronautics and Astronautics, 2014, 30(3): 845–856.
[10] Wheeler A.P.S., Sofia A., Miller R.J., The effect of leading-edge geometry on wake interactions in compressors. Journal of Turbomachinery, 2009, 131(4): 041013.
[11] Zong H., Kotsonis M.F., Evolution and scaling of plasma synthetic jets. Journal of Fluid Mechanics, 2018, 837: 147–181.
[12] Thill C., Etches J., Bond I., Potter K., Weaver P., Morphing skins. The Aeronautical Journal, 2008, 112(1129): 117–139.
[13] Sudhi A., Elham A., Badrya C., Coupled boundary-layer suction and airfoil optimization for hybrid laminar flow control. AIAA Journal, American Institute of Aeronautics and Astronautics, 2021, 59(12): 5158–5173.
[14] Corsini A., Delibra G., Sheard A.G., The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, IMECHE, 2014, 228(3): 255–271.
[15] Keerthi M.C., Rajeshwaran M.S., Kushari A., De A., Effect of leading-edge tubercles on compressor cascade performance. AIAA Journal, American Institute of Aeronautics and Astronautics, 2016, 54(3): 912–923.
[16] Keerthi M.C., Kushari A., De A., Kumar A., Experimental investigation of effects of leading-edge tubercles on compressor cascade performance. American Society of Mechanical Engineers Digital Collection, 2014.
https://doi.org/10.1115/GT2014-26242
[17] Wang Z., Zhuang M., Leading-edge serrations for performance improvement on a vertical-axis wind turbine at low tip-speed-ratios. Applied Energy, 2017, 208: 1184–1197.
[18] ANSYS CFX, Version 19.2, ANSYS CFX-solver theory guide, ANSYS, Inc., Canonsburg, PA, 2018.
[19] Nicoud F., Ducros F., Subgrid-scale stress modelling based on the square of the velocity gradient tensor. Flow. Turbulence and Combustion, 1999, 62(3): 183–200.
[20] Vanna F.D., Picano F., Benini E., A sharp-interface immersed boundary method for moving objects in compressible viscous flows. Computers & Fluids, 2020, 201: 104415.
[21] Celik I.B., Cehreli Z.N., Yavuz I., Index of resolution quality for large eddy simulations. Journal of Fluids Engineering, 2005, 127(5): 949–958.
[22] Boese M., Fottner L., Effects of riblets on the loss behavior of a highly loaded compressor cascade. American Society of Mechanical Engineers Digital Collection, 2009, pp. 743–750.
[23] Choudhry A., Arjomandi M., Kelso R., A study of long separation bubble on thick airfoils and its consequent effects. International Journal of Heat and Fluid Flow, 2015, 52: 84–96.
[24] Boiko A.V., Grek G.R., Dovgal A.V., Koslov V.V., The origin of turbulance in near-wall flows. Springer, Berlin Heidelberg New York, 2002.
[25] Lang M., Rist U., Wagner S., Investigations on controlled transition development in a laminar separation bubble by means of LDA and PIV. Experiments in Fluids, 2004, 36(1): 43–52.
[26] Walker G.J., Transitional flow on axial turbomachine blading. AIAA Journal, American Institute of Aeronautics and Astronautics, 1989, 27(5): 595–602.
[27] Joshua R.B., Numerical investigations of instability and transition in attached and separated shear layers. Carleton University, 2014.
[28] Yang Z., Voke P.R., Large-eddy simulation of boundary-layer separation and transition at a change of surface curvature. Journal of Fluid Mechanics, 2001, 439: 305–333.
[29] Sajadmanesh S.M., Mojaddam M., Mohseni A., Nikparto A., Numerical identification of separation bubble in an ultra-high-lift turbine cascade using URANS simulation and proper orthogonal decomposition. Aerospace Science and Technology, 2019, 93: 105329.
[30] Chen L., Liu C., Numerical study on mechanisms of second sweep and positive spikes in transitional flow on a flat plate. Computers & Fluids, 2011, 40(1): 28–41.
[31] Liu C., Wang Y., Yang Y., Duan Z., New omega vortex identification method. Science China Physics, Mechanics & Astronomy, 2016, 59(8): 684711.
[32] Dubief Y., Delcayre F., On coherent-vortex identification in turbulence. Journal of Turbulence, 2000, 1(1): 011.
[33] Dong X., Wang Y., Chen X., Dong Y., Zhang Y., Liu C., Determination of epsilon for Omega vortex identification method. Journal of Hydrodynamics, 2018, 30(4): 541–548.
[34] Wang M., Li Z., Yang C., Zhao S., Zhang Y., Lu X., Large eddy simulation of the separated flow transition on the suction surface of a high subsonic compressor airfoil. Physics of Fluids, American Institute of Physics, 2020, 32(3): 034110.
[35] Yarusevych S., Sullivan P.E., Kawall J.G., On vortex shedding from an airfoil in low-Reynolds-number flows. Journal of Fluid Mechanics, Cambridge University Press, 2009, 632: 245–271.
[36] Moser R.D., Rogers M.M., The three-dimensional evolution of a plane mixing layer: pairing and transition to turbulence. Journal of Fluid Mechanics, Cambridge University Press, 1993, 247: 275–320.
[37] Liu C., Chen L., Study of mechanism of ring-like vortex formation in late flow transition. 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2010-1456
[38] Moore J., Shaffer D.M., Moore J.G., Reynolds stresses and dissipation mechanisms downstream of a turbine cascade. Journal of Turbomachinery, 1987, 109(2): 258–267.

基金

This study is financially supported by the National Science and Technology Major Project (2019-II-0004-0024) and Youth Innovation Promotion Association CAS (No. 2020148).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2023
PDF(13301 KB)

73

Accesses

0

Citation

Detail

段落导航
相关文章

/