Abstract Manufactured compressor blades deviate from their intended design, leading to a shift in the mean and scattering of aerodynamic performance. To mitigate performance deterioration without increasing manufacturing costs, an accurate and efficient evaluation of aerodynamic uncertainty, known as uncertainty quantification (UQ), is crucial. The high cost of three-dimensional computational fluid dynamics (CFD) simulations has prompted UQ studies to predominantly target two-dimensional cases or extend to three dimensions with a limited number of geometric variables. Since geometric deviations exist at various positions on three-dimensional blades, accurately describing them would necessitate a high-dimensional geometric deviation space. To investigate high-dimensional uncertainty problems, an efficient adjoint-based UQ method is proposed and demonstrated using the three-dimensional transonic fan, NASA Rotor 67. The method proves to be not only hundreds of times faster than full-fidelity CFD but also yields results with satisfactory accuracy. The investigation into the underlying mechanism reveals that geometric uncertainties significantly influence shock waves, tip clearance vortices, corner vortices, and the radial distribution of three-dimensional flows, ultimately resulting in deviations in aerodynamic performance.

Qian Zhang

Dejun Meng

Shenren Xu

Dingxi Wang

Xiuquan Huang

Journal of Turbomachinery

The Journal of Turbomachinery publishes archival-quality, peer-reviewed technical papers that advance the state-of-the-art of turbomachinery technology related to gas turbine engines. The broad scope of the subject matter includes the fluid dynamics, heat transfer, and aeromechanics technology associated with the design, analysis, modeling, testing, and performance of turbomachinery. Emphasis is placed on gas-path technologies associated with axial compressors, centrifugal compressors, and turbines.

Topics: Aerodynamic design, analysis, and test of compressor and turbine blading; Compressor stall, surge, and operability issues; Heat transfer phenomena and film cooling design, analysis, and testing in turbines; Aeromechanical instabilities; Computational fluid dynamics (CFD) applied to turbomachinery, boundary layer development, measurement techniques, and cavity and leaking flows.

The Journal of Turbomachinery publishes high-quality, peer-reviewed technical papers that advance the state-of-the-art in turbomachinery technology related to gas turbine engines. The journal covers a broad range of topics, including fluid dynamics, heat transfer, and aeromechanics technology associated with the design, analysis, modeling, testing, and performance of turbomachinery. Emphasis is placed on gas-path technologies related to axial compressors, centrifugal compressors, and turbines.\n\nTopics include: aerodynamic design, analysis, and testing of compressor and turbine blades; compressor stall, surge, and operability issues; heat transfer phenomena and film cooling design, analysis, and testing in turbines; aeromechanical instabilities; and computational fluid dynamics (CFD) applied to turbomachinery, boundary layer development, measurement techniques, and cavity and leaking flows.

《Journal of Turbomachinery》致力于发表高质量的、经过同行评审的技术论文，推动与燃气涡轮发动机相关的涡轮机械技术的最新进展。该期刊的主题范围广泛，包括与涡轮机械的设计、分析、建模、测试和性能相关的流体动力学、热传递和气动机械技术。特别强调与轴流压缩机、离心压缩机和涡轮相关的气流路径技术。\n\n研究主题包括：压缩机和涡轮叶片的气动设计、分析和测试；压缩机失速、涡旋和可操作性问题；涡轮中的热传递现象及膜冷却的设计、分析和测试；气动机械不稳定性；应用于涡轮机械的计算流体动力学（CFD）、边界层发展、测量技术以及腔体和泄漏流动。

Category	Quartile
工程技术	3
工程技术, 工程机械	3

Efficient Aerodynamic Uncertainty Quantification for a Three-Dimensional Transonic Fan Rotor

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Journal Info

Category	Quartile
ENGINEERING, MECHANICAL	3