Outlet guide vane forced response

这个PHD项目的目的是改进预测方法和对非轴对称组件上的受力机制的物理理解，并在可能的情况下制定缓解措施。这将通过开发和验证CFD方法来预测非轴对称OGV在各种运行条件下(包括迎角运行)的风扇强迫和空气阻尼来实现这一点。研究了叶片几何形状、非均匀流动条件以及频率失谐对每个叶片气动性能的影响。在CFD研究中获得的知识将有助于开发降阶模型和缓解措施。

The aim of this PhD project is to improve prediction methods and physical understanding offorcing mechanisms on non-axisymmetric assemblies and develop mitigation measures if possible. This will beachieved by developing and validate CFD methods for predicting fan forcing and aero-damping on non-axisymmetricOGVs under a range of operating conditions, including operation at angle-of-attack. The effects of aerodynamicdifferences on each vane as caused by vane geometry patterns and non-uniform flow conditions, as well asfrequency mistuning will be investigated. The knowledge gained during the CFD study will aid the development ofreduced order models and mitigation measures.