直接供气预旋转静系流动特性的实验

蔡旭; 徐国强; 罗翔; 赵熙; 李烨

直接供气预旋转静系流动特性的实验

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

计量
- 文章访问数: 1778
- HTML浏览量: 104
- PDF量: 564
- 被引次数: 0
出版历程
- 收稿日期: 2012-01-04
- 刊出日期: 2012-10-28

Experiment of flow characteristics of direct transfer pre-swirl system

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

摘要

摘要: 用实验方法研究直接供气转静系预旋腔内的流动特性,得到了静盘表面的静压分布、预旋孔的排气系数以及盘缘出口流量的分配规律.结果表明:流量改变对静盘压力分布形状的影响较大,而转速改变的影响则较小;在几何条件不变以及预旋进气和中心进气流量相等的前提下,预旋孔排气系数主要由预旋进口流量系数决定;对于该实验模型和研究工况来说,盘缘出口流量系数比在0.7以上.
- 直接供气预旋系统 /
- 旋转盘腔 /
- 涡轮盘 /
- 流动 /
- 转静系
Abstract: Flow characteristics of a direct transfer pre-swirl rotor-stator system were investigated experimentally.Static pressure distribution on the stator,discharge coefficient of pre-swirl nozzles and mass flow rate distribution principle at the rim seal and receiver holes were obtained.The results show that the shapes of static pressure distribution on the stator are mainly affected by mass flow rate,and slightly affected by rotating speed of the disk;with equivalent mass flow rate of pre-swirl and disk cooling air,discharge coefficients of pre-swirl nozzles are mostly decided by mass flow rate coefficient at pre-swirl nozzles;for the physical model and operating conditions presented,the ratio of mass flow rate coefficient at the rim seal to total mass flow coefficient is above 0.7.
- direct transfer pre-swirl system /
- rotating disk system /
- turbine disk /
- flow /
- rotor-stator system

HTML

参考文献(15)

[1]	Owen J M.Modelling internal air systems in gas turbine engines[J].Journal of Aerospace Power,2007,22(4):505-520.
[2]	Dittmann M,Geis T,Schramm V,et al.Discharge coefficients of a preswirl system in secondary air systems[J].Journal of Turbomachinery,2002,124(1):119-124.
[3]	Yan Y Y,Gord M F,Lock G D,et al.Fluid dynamics of a pre-swirl rotor-stator system[J].Journal of Turbomachinery,2003,125(10):641-647.
[4]	Lewis P,Wilson M,Lock G D,et al.Physical interpretation of flow and heat transfer in preswirl systems[J].Journal of Engineering for Gas Turbines and Power,2007,129(7):769-777.
[5]	Karabay H,Chen J X,Pilbrow R,et al.Flow in a “cover-plate” preswirl rotor-stator system[J].Journal of Turbomachinery,1999,121(1):160-166.
[6]	Karabay H,Wilson M,Owen J M.Predictions of effect of swirl on flow and heat transfer in a rotating cavity[J].International Journal of Heat and Fluid Flow,2001,22(1):143-155.
[7]	Chew J W,Hills N J,Khalatov S,et al.Measure-ment and analysis of flow in a pre-swirled cooling air delivery system .ASME Paper No.GT2003-38084,2003.
[8]	Chew J W,Ciampoli F,Hills N J, et al.Pre-swirled cooling air delivery system performance .ASME Paper GT2005-68323,2005.
[9]	罗翔,徐国强,陶智,等.30°预旋进气旋转盘流动与换热特性的实验[J].北京航空航天大学学报,2007,33(3):290-293. LUO Xiang,XU Guoqiang,TAO Zhi,et al.Flow and heat transfer in rotor-stator system with pre-swirl angle of 30°[J].Journal of Beijing University of Aeronautics and Astronautics,2007,33(3):290-293.(in Chinese)
[10]	罗翔,徐国强,蔡毅,等.中心出气对高位进气旋转盘流动与换热的影响[J].航空动力学报,2007,22(5):709-713. LUO Xiang,XU Guoqiang,CAI Yi,et al.Influence of central outflow on flow and heat transfer in a pre-swirl rotor-stator system[J].Journal of Aerospace Power,2007,22(5):709-713.(in Chinese)
[11]	朱晓华,刘高文,刘松龄,等.带盖板的预旋系统温降和压力损失数值研究[J].航空动力学报,2010,25(11):2498-2506. ZHU Xiaohua,LIU Gaowen,LIU Songling,et al.Numerical studies of temperature drop and pressure loss in a cover-plate preswirl system[J].Journal of Aerospace Power,2010,25(11):2498-2506.(in Chinese)
[12]	何振威,冯青,刘松龄,等.带盖板预旋系统的流动实验[J].推进技术,2011,32(5):654-657. HE Zhenwei,FENG Qing,LIU Songling,et al.Experiment of the flow in a cover-plate pre-swirl system[J].Journal of Propulsion Technology,2011,32(5):654-657.(in Chinese)
[13]	曾军,张剑,黄康才.预旋进气转-静盘腔中的流动和传热数值研究[J].航空动力学报,2008,23(7):1168-1173. ZENG Jun,ZHANG Jian,HUANG Kangcai.Flow and heat transfer investigation in pre-swirl inflow rotor-stator cavity[J].Journal of Aerospace Power,2008,23(7):1168-1173.(in Chinese)
[14]	徐国强.转静系旋转盘腔内冷气的流动与换热研究 .北京:北京航空航天大学,1999. XU Guoqiang.Flow and heat transfer characteristics of coolant through a shrouded rotating disk system .Beijing:Beijing University of Aeronautics and Astronautics,1999.(in Chinese)
[15]	罗翔.复杂旋转盘腔内冷气的流动与换热特性研究 .北京:北京航空航天大学,2003. LUO Xiang.Flow and heat transfer between a stator and a rotor with blade cooling holes .Beijing:Beijing University of Aeronautics and Astronautics,2003.(in Chinese)