中心进气转静系转盘风阻扭矩数值模拟

张 达; 韩建桥; 罗 翔; 徐国强

doi:10.13224/j.cnki.jasp.2014.04.003

中心进气转静系转盘风阻扭矩数值模拟

doi: 10.13224/j.cnki.jasp.2014.04.003

北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室,北京 100191

基金项目:

航空科学基金(2012ZBN2002)

详细信息

作者简介:
张达：张达(1986-),男,辽宁沈阳人,博士生,主要从事涡轮盘腔流动与换热的研究.

中图分类号: V231.1
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- 文章访问数: 1903
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出版历程
- 收稿日期: 2013-08-12
- 刊出日期: 2014-04-28

Numerical simulation of friction torque of rotating disc for rotor-stator system with central inflow

National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 采用计算流体力学(CFD)商业软件CFX从流动参数及几何结构两个方面对中心进气转静系盘腔内转盘风阻扭矩特性进行了数值模拟研究,同时搭建一个转盘风阻扭矩实验台测量自由盘风阻扭矩.中心进气转静系转盘风阻扭矩与经典经验公式进行了对比,结果表明:利用数值模拟方法,得到的无量纲扭矩系数与经典经验关系式计算得到的数据总体相差小于10%,利用湍流参数来表征转盘转速以及叠加流流量,对于分析转盘风阻扭矩非常便利.利用湍流参数定量分析时需注意叠加流以及转速的量级同样影响着风阻扭矩的数值.几何结构对于风阻扭矩也有影响,但相比流动参数影响较小.
- 涡轮盘 /
- 自由盘 /
- 风阻扭矩 /
- 风阻损失 /
- 扭矩系数 /
- 转静系
Abstract: In order to investigate the friction torque performance of rotating disc for rotor-stator system with central inflow, numerical simulation was conducted by using computational fluid dynamic (CFD) commercial software CFX in consideration of flow parameters and geometric structure respectively. A test rig for the friction torque of rotating disc was developed to test the friction torque of free disc. The numerical simulation results were compared with the previous empirical associated correlation for the friction torque of rotating disc for rotor-stator system with central inflow. The results show that compared with the previous empirical associated correlation, the difference of dimensionless the moment coefficient is within 10%. It is convenient to use turbulent parameter which represents the rotating speed and superimposed flow to analyze the friction torque of the rotating disc. For a given value of the turbulence parameter, the magnitudes of the rotating speed and superimposed flow have effect on the friction torque. Compared with the flow parameters, geometric parameters have smaller influence on friction torque.
- turbine disc /
- free disc /
- friction torque /
- windage loss /
- moment coefficient /
- rotor-stator system

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参考文献(18)

[1]	Dorfman L A.Hydrodynamic resistance and the heat loss of rotating solids[M].Edinburgh,UK:Oliver and Boyd,1963.
[2]	Bayley F J,Owen J M.Flow between a rotating and a stationary disc[J].Aeronautical Quarterly,1969,20:333-354.
[3]	Batchelor G K.Note on the class of solutions of the Navier-Stokes equations representing steady rotationally symmetric flow[J].Quarterly Journal of Mechanics and Applied Mathematics,1951,4(1):29-41.
[4]	Stewartson K.On the flow between two rotating coaxial discs[J].Mathematical Proceedings of the Cambridge Philosophical Society,1953,49(2):333-341.
[5]	Soo S L.Laminar flow over an enclosed rotating disc[J].Transaction on ASME,1958,80(2):287-296.
[6]	Vaughan C M.A numerical investigation into the effect of an external flow field on the sealing of a rotor-stator cavity .Brighton,UK:University of Sussex,1987.
[7]	Dorfman L A.Effect of radial flow between the rotating disc and housing on their resistance and heat transfer . . http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0284110.
[8]	Daily J W,Ernst W D,Asbedian V V.Enclosed rotating discs with superposed throughflow:mean steady and periodic unsteady characteristics of induced flow .Boston,US:Department of Civil Engineering,Massachusetts Institute of Technology,Hydrodynamics Laboratory Report No.64,1964.
[9]	Owen J M.The effect of forced flow on heat transfer from a disc rotating near a stator[J].International Journal of Heat and Mass Transfer,1971,14(8):1135-1147.
[10]	Bhavani S H,Khodadadi J M.An experimental study of fluid flow in disc cavities[J].Journal of Turbomachinery,1992,114(2):454-461.
[11]	Owen J M.Fluid flow and heat transfer in rotating disc systems[J].Heat and Mass Transfer in Rotating Machinery,1984,1:81-103.
[12]	Chew J W,Vaughan C M.Numerical predictions for the flow induced by an enclosed rotating disc .Amsterdam,Netherlands:33rd Gas Turbine Conference,1988.
[13]	Owen J M,Rogers R H.Flow and heat transfer in rotating-disc systems[M].Taunton,US:Research Studies Press, 1989.
[14]	Gartner W.A prediction method for the frictional torque of a rotating disc in a stationary housing with superimposed radial outflow .ASME Paper 97-GT-204,1997.
[15]	Owen J M.An approximate solution for the flow between a rotating and a stationary disk[J].Journal of Turbomachinery,1989,111(3):323-332.
[16]	Pearson C E.Numerical solutions for the time-dependent viscous flow between two rotating coaxial disks[J].Journal of Fluid Mechanics,1965,21(4):623-633.
[17]	Schouveiler L,Le Gal P,Chauve M P.Instabilities of the flow between a rotating and a stationary disk[J].Journal of Fluid Mechanics,2001,443:329-350.
[18]	Poncet S,Chauve M P,Schiestel R.Batchelor versus stewartson flow structures in a rotor-stator cavity with throughflow[J].Physics of Fluids,2005,17(7):075110.1-075110.15.