Aerodynamic Reduced-Order Model of Shape-Change Blade Subjected to Upstream Wake
Publication: Journal of Aerospace Engineering
Volume 33, Issue 5
Abstract
This paper presents a Volterra series reduced-order model method to evaluate aerodynamic forces of aircraft engine blade designs, whose shape changes during design and are always excited by upstream wakes. The method uses a superposition of the steady and dynamic Volterra series to reach this aim. The steady series represents the influence of the blade shape changes on the blade aerodynamic forces. The dynamic series represents the impact of the unsteady upstream wakes on the blade aerodynamic forces. A T106LPT blade is used as an example to discuss the proposed method. The accuracy of the ROM method is analyzed by the example at the wake excitation condition with or without shape-change. The example shows that the ROM method can predict the wake induced pressure variation of a shape-change blade without repeated computational fluid dynamics (CFD) analyses.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This project is supported by the National Science Foundation of China (Grant No. 51775518).
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Published In
Journal of Aerospace Engineering
Volume 33 • Issue 5 • September 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Oct 14, 2019
Accepted: Apr 23, 2020
Published online: Jun 18, 2020
Published in print: Sep 1, 2020
Discussion open until: Nov 18, 2020
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