NASA67级非定常流场的频域分析

赵军; 柳阳威; 刘宝杰

NASA67级非定常流场的频域分析

北京航空航天大学能源与动力工程学院, 北京 100083

计量
- 文章访问数: 1465
- HTML浏览量: 1
- PDF量: 409
- 被引次数: 0
出版历程
- 收稿日期: 2006-07-31
- 修回日期: 2006-10-25
- 刊出日期: 2007-08-28

Frequency-domain analysis of NASA67 unsteady flow field

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 通过对NASA67级典型截面非定常流场的快速傅立叶分解, 在频域内对转静干扰效应、交界面典型脉动量的周向波形以及周期边条的相位延迟角进行了分析.同时可以看到一些在时域中很难直观看到的现象.最后通过对比采用前5阶谐波合成出来的确定应力和非定常计算合成出来的确定应力, 分析了非线性谐波法在确定应力建模方面的可行性及优势.
- 航空、航天推进系统 /
- 频域分析 /
- 确定应力 /
- 非线性谐波法 /
- 非定常计算
Abstract: Based on fast fourier transformation for the typical profile of NASA67 unsteady flow field, the rotor-stator interactions, the circumferential distributions of typical unsteady perturbations at the rotor-stator interface and the inter-blade phase angle were analyzed in the frequency-domain.Also, some phenomena difficult to observe in time-domain were visualized in frequency-domain.Finally, the deterministic stresses from five-order harmonic synthesis and unsteady simulation were compared, meanwhile the feasibility and advantage of nonlinear harmonic method in modeling the deterministic stresses were analyzed.
- aerospace propulsion system /
- frequency-domain analysis /
- deterministic stresses /
- nonlinear harmonic method /
- unsteady simulation

HTML

参考文献(10)

[1]	Adamczyk J J.Model equation for simulation flows in multistage turbomachinery[R].ASME Paper 85-GT-226 or NASA-TM86869.
[2]	Adamczyk J J.A model for closing the invisid form of the average passage equation system[J].Journal of Turbinemachinery,1986,108(2):180-186.
[3]	Rhie C M,Gleixner A J,Spear D A,et al.Development and application of a multistage navier-stokes solver,Part 1:Multistage modeling using body-forces and deterministic stresses[R].ASME Paper 95-GT-342,1995.
[4]	Sondak D L,Dorney D J,Davis R L.Modeling turbomachinery unsteadiness with lumped deterministic stresses[R].AIAA-96-2570,1996.
[5]	Van de Wall A G,Kadambi J R,Adamczyk J J.A transport model for the deterministic stresses associated with turbomachinery blade row interaction[J].Journal of Turbomachinery,2000,122(4):593-603.
[6]	季路成.轴流式叶轮机转子/静子干扰非定常流动探索研究[D].北京:北京航空航天大学,1998.JI Lucheng.Research on rotor/stator interaction in axial turbomachinery[D].Beijing:Beijing University of Aeronautics and Astronautics,1998.
[7]	高丽敏.离心压缩机级内流动的数值分析与实验研究[D].西安:西安交通大学,2002.GAO Limin.Numerical and experimental research on centrifugal compressor[D].Xi'an:Xi'an Jiaotong University,2002.
[8]	Giles M.An approach for multistage calculations incorporating unseadiness[R].ASME92-GT-282,1992.
[9]	He L,Ning W.Efficient approach for analysis of unsteady viscous flows in turbomachines[J].AIAA JOURNAL,1998,36 (11):2005-2012.
[10]	Chen T,Vasanthakumar P,He L.Analysis of unsteady blade row interaction using nonlinear harmonic approach[J].Journal of Propulsion and Power,2001,17 (3):651-658.