Time-marching throughflow analysis of multistage axial compressors based on a novel inviscid blade force model
Time-marching throughflow analysis of multistage axial compressors based on a novel inviscid blade force model
复制标题
基于新型无粘叶片力模型的多级轴流压缩机时间推进通流分析
DOI：
10.1177/0954410019840588
复制
发表时间：
2019-04
期刊：
影响因子：
--
通讯作者：
Ferlauto Michele
中科院分区：
文献类型：
--
作者：
Yang Chen;Wu Hu;Yang Jinguang;Ferlauto Michele
介绍了一种用于轴流压气机非设计性能分析的时间推进通流法。该方法是基于欧拉方程，并提出了一种新的无粘叶片力模型，以实现所需的流动偏转。采用三次样条插值方法对叶片平均曲面进行自动修正，解决了叶片前后缘流动不连续的问题。经验损失模型已被集成到通流模型中，以模拟真实的三维流中的粘性力效应。为了验证通流模型的正确性，本文给出了两个试验工况，一个是跨音速风扇转子- NASA Rotor 67，工作在近峰值效率点，另一个是1.5级高速轴流压气机，进口导叶工作在68%额定转速。对转子67风扇的计算结果得到了合理的流动参数分布，并对1.5级轴流压气机在强变工况下的总体性能特性进行了准确的预测。两种情况下的CPU时间在一个操作点上花费不到一分钟。结果表明，时间推进通流模型是有效的和高效的在气动性能分析。
A time-marching throughflow method for the off-design performance analysis of axial compressors is described. The method is based on the Euler equations, and a new inviscid blade force model is proposed in order to achieve desired flow deflection. The flow discontinuity problems at the leading and trailing edges are tackled by automatic correction of blade mean surface using cubic spline interpolation. Empirical loss models have been integrated into the throughflow model in order to simulate the viscous force effects in the real three-dimensional flow. Two test cases have been presented to validate the throughflow model, including the transonic fan rotor – NASA Rotor 67 working at a near-peak-efficiency point and a 1.5-stage high-speed axial compressor with inlet guide vane operating at 68% nominal speed. Reasonable flow parameters distributions have been obtained in the Rotor 67 fan calculating results, and accurate overall performance characteristics have also been predicted at the strong off-design condition for the 1.5-stage axial compressor. The CPU time of both cases cost less than one minute at one operating point. The results indicate that the developed time-marching throughflow model is effective and efficient in the turbomachinery performance analysis.
登录
查看更多内容
DOI：
10.1115/1.1650379
发表时间：
2005
期刊：
--
影响因子：
--
作者：
J. Horlock;J. Denton
通讯作者：
J. Horlock;J. Denton
影响因子：
1.7
作者：
S. Taddei;F. Larocca
通讯作者：
S. Taddei;F. Larocca
DOI：
10.1243/09576509jpe991
发表时间：
2010-06
期刊：
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
影响因子：
--
作者：
M. Petrovic;A. Wiedermann;M. Banjac
通讯作者：
M. Petrovic;A. Wiedermann;M. Banjac
影响因子：
2.5
作者：
YOON, S;JAMESON, A
通讯作者：
JAMESON, A
DOI：
10.1243/0957650991537608
发表时间：
1999-06
期刊：
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
影响因子：
--
作者：
A. Sturmayr;C. Hirsch
通讯作者：
A. Sturmayr;C. Hirsch