• 首页期刊介绍编委会期刊订阅广告合作联系我们English
  • 选择皮肤:
雷昭,刘高文,顾伟.部分喷嘴关闭对预旋供气系统参数均匀性影响的计算[J].航空动力学报,2020,(5):963~972
部分喷嘴关闭对预旋供气系统参数均匀性影响的计算
Numerical simulation of effects of partial nozzle closure on uniformity of parameters in pre-swirl air supply system
投稿时间:2019-10-31  
DOI:10.13224/j.cnki.jasp.2020.05.008
中文关键词:  预旋供气系统  预旋喷嘴  主动控制  旋转盘腔  转子相位  不均匀性
英文关键词:pre-swirl air supply system  pre-swirl nozzle  active control  rotating disc cavity  rotor phase  non-uniformity
基金项目:
作者单位
雷昭 School of Power and Energy,Northwestern Polytechnical University,Xi’an 710072,China
 
刘高文 School of Power and Energy,Northwestern Polytechnical University,Xi’an 710072,China
 
顾伟 Commercial Aircraft Engine Company Limited,Aero Engine Corporation of China,Shanghai 200241,China 
摘要点击次数: 84
全文下载次数: 130
中文摘要:
      为了研究部分喷嘴关闭对预旋供气系统的供气流量和供气温度及其均匀性的影响,采用稳态的固定转子相位法对180°旋转盘腔进行了数值模拟,并通过改变转子相位的稳态计算来近似模拟瞬态问题的时空变化特性。结果表明:在设计点工况(系统压比为1.32,旋转马赫数为0.678)下,喷嘴流通面积关闭14.3%时,引气总流量和供气总流量分别下降10.9%和9.9%。单个供气孔流量的波动幅度由1.1%增大为5.4%。供气的相对总温降低1 K左右,波动幅度由约0.5 K增大为1.5 K。
英文摘要:
      In order to study the influence of the partial nozzle closure on the air supply mass flow rate, air supply temperature and circumferential uniformity of the air supply parameters of the pre-swirl air supply system, the steady-state method with frozen rotor approach was used to simulate the 180° rotating disk cavity model, and the time-space characteristics of transient problems were approximated by changing the rotor phase in the steady-state calculations. Results showed that: at the design point condition(system pressure ratio of 1.32 and rotating Mach number of 0.678), when the flow area of nozzle was closed by 14.3%, the total bleed air flow and total air supply flow decreased by 10.9% and 9.9%, respectively. The amplitude of fluctuation of the flow rate of a single supply hole increased from 1.1% to 5.4%. The relative total temperature of supply air decreased about 1 K, and the amplitude of fluctuation increased from 0.5 K to 1.5 K.
查看全文  查看/发表评论  下载PDF阅读器
关闭
.