Aerodynamics of lobed mixers and inter-turbine ducts

这项拟议的研究项目将与普拉特和惠特尼加拿大公司合作进行，旨在提高我们对燃气轮机涡轮间管道和波瓣混合器组件中三维流场的基本原理的了解。这一目标将通过基于几何和流动参数的系统变化的调查来实现，这些参数被认为是这些发动机部件中的流动发展的主导因素。这项研究将协同使用实验和计算技术来执行具有较大参数集的测试矩阵，同时实现所述流场的所需的空间和时间分辨率。更好地了解这些发动机部件中的流体动力学将为进一步优化其尺寸和改善空气动力学性能奠定基础，这将支持设计重量更轻、尺寸更小和效率更高的燃气轮机发动机的更广泛目标。

The proposed research project, to be undertaken in collaboration with Pratt and Whitney Canada, aims to improve our understanding of the fundamentals of the three-dimensional flow fields in the inter-turbine duct and lobed mixer components of gas-turbine engines. This objective will be achieved through an investigation based on systematic variations of the geometric and flow parameters that are deemed to dominate the flow development in these engine components. The study will make synergic use of experimental and computational techniques to execute a test matrix with a relatively large parameter set while achieving the desired spatial and temporal resolution of the flow fields in question. Improved understanding of the fluid dynamics in these engine components will provide the foundation for their further optimization towards reduced size and improved aerodynamic performance, which will support the broader goal of designing gas-turbine engines with lower weight, reduced size, and greater efficiency.