全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

高负荷氦气压气机矩形叶栅流动分离特性

DOI: 10.3969/j.issn.1006-7043.201401050

Keywords: 高负荷, 氦气压气机, 附面层, 分离, 弯叶片, 叶栅

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对高负荷氦气压气机叶栅流动分离问题,以某高负荷氦气矩形叶栅为研究对象,采用SST湍流模型加γ-Reθ转捩模型进行了数值模拟.分析了不同负荷、弯角及弯高的高负荷氦气压气机矩形叶栅的流动分离结构和特性.研究结果表明,马蹄涡压力面分支是矩形叶栅角区集中脱落涡和壁角涡形成的主要原因;随着攻角和负荷的增加,叶栅吸力面的分离形式由开式分离向闭式分离转化;而采用恰当的弯高和弯角可以有效抑制流动分离,改善高负荷氦气压气机端部流动状况,减小流动损失.

References

[1]  韩俊, 温风波, 王松涛. 氦气压气机叶型气动特性研究 [J]. 科学技术与工程, 2014(3): 152-158.HAN Jun, WEN Fengbo, WANG Songtao. Aerodynamic performance study on the helium compressor profile[J]. Science Technology and Engineering, 2014(3): 152-158.
[2]  KE T, ZHENG Q. Highly loaded aerodynamic design and three dimensional performance enhancement of a HTGR helium compressor[J]. Nuclear Engineering and Design, 2012, 249: 256-267.
[3]  MUTO Y, ISHIYAMA S, SHIOZAWA S, et al. Design and economics of the HTGR-GT power plant by JAERI[C]//ASME Turbo Expo 2002: Power for Land, Sea, and Air. Amsterdam, Netherlands, 2002: 623-630.
[4]  YAN X, TAKIZUKA T, KUNITOMI K, et al. Aerodynamic design, model test, and CFD analysis for a multistage axial helium compressor[J]. Journal of Turbomachinery, 2008, 130(3): 031018.
[5]  ROBERTS S K, SJOLANDER S A. Effect of the specific heat ratio on the aerodynamic performance of turbomachinery[J]. Journal of Engineering for Gas Turbines and Power, 2005, 127(4): 773-780.
[6]  Van den BRAEMBUSSCHE R A, BROUCKAERT J F, PANIAGUA G, et al. Design and optimization of a multistage turbine for helium cooled reactor[J]. Nuclear Engineering and Design, 2008, 238(11): 3136-3144.
[7]  ZHU R, WANG J, ZHENG Q, et al. Off-design performance research of an axial helium compressor for HTGR-10 power conversion unit[J]. Nuclear Engineering and Design, 2010, 240(10): 2914-2919.
[8]  王松涛, 杜鑫, 陈莹, 等. 高负荷氦气压气机的气体流动特点与改型设计[J]. 核动力工程, 2009,30(2):65-69.WANG Songtao, DU Xin, CHEN Ying, et al. Flow characteristics and redesign of highly loaded helium compressors[J]. Nuclear Power Engineering, 2009,30(2): 65-69.
[9]  KE Tingfeng, ZHENG Qun. Highly loaded aerodynamic design and three dimensional performance enhancement of a HTGR helium compressor [J]. Nuclear Engineering and Design, 2012,49(2): 256-267.
[10]  ZHOU J, ZHENG Q, LI Y. The optimum parameters of a HTGR helium turbine cycle and numerical analyses of helium turbine cascades[C]//ASME Turbo Expo 2006: Power for Land, Sea, and Air. Barcelona, Spain, 2006: 867-876.
[11]  辛小鹏, 孙聿峰, 邵雪明, 等. 氦气流动特性的初步研究[J].燃气轮机技术, 2008, 21(4):40-45.XIN Xiaopeng, SUN Yufeng, SHAO Xueming, et al. Study on flow characteristics of helium[J]. Gas Turbine Technology, 2008, 21(4): 40-45.
[12]  ZHU R, ZHENG Q, YUE G, et al. Researches of similitude theory for axial flow helium compressor[C]//ASME Turbo Expo 2008: Power for Land, Sea, and Air. Berlin, Germany, 2008: 247-254.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133