期刊文献+

调节级局部进汽对下游动叶气动负荷影响的数值研究 被引量:5

Numerical Simulation of Effect of Adjust Stage Local Intake on Aerodynamic Load of Downstream Rotor Blade
下载PDF
导出
摘要 基于舰船用主汽轮机多工况、变转速、变参数的特点,应用商业软件CFX对具有3组喷嘴的复速级叶栅进行全周数值模拟,着重分析了调节级局部进汽对下游动叶气动负荷的影响,数值模拟结果表明,各个喷嘴组边界壁面的存在对流动具有较大影响,同时喷嘴叶栅Ⅰ的叶片型线的不同导致边界畸变对流动的影响更敏感。动叶叶栅的压力分布特点表明了尾迹低速区和主流低压区是形成动叶流动参数不稳定的主要因素,从而形成了叶栅内特有的非定常流动现象。 The marine steam turbine have the characteristics of many work conditions, variable rotate speed and variable parameter. The commercial software CFX is applied to simulate the double-velocity stage turbine with three group nozzle stages. The paper analyzed the effect of adjust stage local intake for aerodynamic load of downstream rotor blade. The numerical simulation results show that the boundary wall of nozzle stage has a great effect on the flow in the turbine and the nozzle stage I different blade profile has also an effect on the flow sensitivity for boundary aberration. The static pressure distribution of rotor blade show that the low velocity domain of trail edge and the low pressure domain of mainstream lead to the rotor flow parameter unsteady and form the unsteady flow phenomenon of turbine cascade.
出处 《汽轮机技术》 北大核心 2010年第1期41-44,共4页 Turbine Technology
关键词 局部进气 调节级 复速级 船舰汽轮机 local intake adjust stage double-velocity stage marine steam turbine
  • 相关文献

参考文献8

二级参考文献26

  • 1田瑞峰,张志俭,孙浩伟.低参数单缸多级汽轮机热力计算程序开发[J].汽轮机技术,2004,46(5):336-338. 被引量:4
  • 2赵昕,钱志博.鱼雷单级涡轮发动机叶片强度设计[J].机械设计与制造,2005(7):8-9. 被引量:1
  • 3王美玉,汪洋.大功率核电汽轮机的技术发展[J].汽轮机技术,1995,37(4):210-214. 被引量:3
  • 4曹伟,钱志博.水下航行器燃气涡轮机主要结构类型的分析[J].机械设计与制造,2006(1):18-20. 被引量:2
  • 5CAMPBELL C E. WELNA H J. Preliminary evaluation of turbine performance with variable- area turbine nozzles in a turbojet engine[R].NACARM-E52J20, 1953.
  • 6RAZINSKY E H, KUZIAK W R J, Aerothermodynamic performance of a variable nozzle power turbine stage for an automotive gas turbine [ J].ASME Journal of Engineering for Power, 1977, 99:587 - 592.
  • 7KARSTENSEN K W, WIGGINS J O. A variable-geometry power turbine for marine gas turbines [J]. ASME Journal of Turbomachinery, 1990, 112:165-174.
  • 8MCCARTHY S J, SCOTT I. The WR-21 intercooled recuperated gas turbine engine: operation and integration into the royal navy type 45 destroyer power system[ R]. ASME Paper, GT-2002-30266, 2002.
  • 9MENTER F R. Two-equation eddy-viscosity turbulence models for engineering applications [ J ]. AIAA Journal, 1994, 32 ( 8 ) : 1598 -1605.
  • 10DENTON J D, DAWES W N, Computational fluid dynamics for turbomachinery design [J]. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science,1999, 213(2) : 107 - 124.

共引文献33

同被引文献41

  • 1李军.部分进气度的变化对多级轴流透平性能的影响[J].燃气轮机技术,2006,19(2):47-48. 被引量:3
  • 2BOHN D E, FUNKE H H. Experimental investiga- tions into the nonuniform flow in a 4-stage turbine with special focus on the flow equalization in the first turbine stage[C]. /// Proceedings of ASME Turbo Ex- po. New York, USA: ASME, 2003:38547.
  • 3HE L. Computation of unsteady flow through steam turbine blade rows at partial admission [C].Journal of Power and Energy, 1997, 211(3): 197-205.
  • 4LAMPART P, SZYMANIAK M, RZADKOWSKI R. Unsteady load of partial admission control stage rotor of a large power steam turbine [C] // Proceedings of ASME Turbo Expo. New York, USA: ASME, 2004:53886.
  • 5SAKAI N, HARADA T, IMAI Y. Numerical study of partial admission stages in steam turbine: efficiency improvement by optimizing admission arc position [C]. JSME International Journal, 2006, 49 (2) : 212-217.
  • 6DORNEY D J, GRIFFIN L W, SONDARK D L. Full and partial admission performance of the simplex tur- bine [C]//38th AIAA/ASME/SAE/ASEE Joint Pro- pulsion Conference &- Exhibit. Reston, USA: AIAA, 2002 : 3638.
  • 7FRIDH J E, BUNKUTE B, FAKHRAI R, et al. An experimental study on partial admission in a two-stage axial air test turbine with numerical comparisons [C] ///Proceedings of ASME Turbo Expo. New York, USA: ASME, 2004: 53774.
  • 8HUSHMANDI N B, HU J, FRIDH J, et al. Numeri- cal study of unsteady flow phenomena in a partial ad- mission axial steam turbine, GT2008-50538 [R]. New York, USA: ASME, 2008.
  • 9晏鑫,李军,丰镇平,等.大功率汽轮机调节级全三维气动性能的数值研究[c]//中国工程热物理第十二届学术年会热机气动热力学分会.重庆:中国工程热物理学会,2006:062034.
  • 10International Association for the Properties of Water and Steam. Release on the IAPWS industrial formula- tion 1997 for the thermodynamic properties of water and steam [EB/OL]. [2007-08-26]. http://www. iapws, org/relguide/IF97-Rev, pdf.

引证文献5

二级引证文献35

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部