摘要
通过求解雷诺平均N-S方程并采用影响系数法,对某重型燃气轮机压气机叶片三个基本正交模态的叶片绕流问题进行了研究;同时结合有限元分析和稳定性参数分析,对压气机叶片气动弹性稳定性进行了初期预判。结果表明:以振型为判断标准的稳定性参数图,可作为压气机设计中气动弹性稳定性的预判工具;本文所述颤振稳定性初期预判方法,可为重型燃气轮机压气机气动弹性稳定性初期设计提供技术支持。
Numerical simulation of 3-D unsteady viscous flow around oscillating compressor blades was carried out in the influence coefficient domain by resolving Reynolds average N-S equation. Combined with the FEM analysis and stability parameter analysis （Tie-Dye method）, the aeroelastic stability analysis for compressor was done. The main results indicate that the stability parameter estimated on the basis of oscilla- tion mode could be a pre-evaluation tool for aeroelastic stability design of compressor. And the method pro- vides technical support for the preliminary aeroelastic stability design of heavy duty gas turbine compressor.
出处
《燃气涡轮试验与研究》
北大核心
2013年第2期18-23,共6页
Gas Turbine Experiment and Research
关键词
气动弹性
重型燃气轮机
压气机
稳定性参数
振荡叶栅
影响系数法
aeroelasticity
heavy duty gas turbine
compressor
stability parameter
oseillating cascade
influence coefficient method
