Turbofan noise detection and control studies by the Wiener-Hopf Technique

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• Xun Huang (Peking University; Hong Kong University of Science and Technology)
• Thursday 15 August 2019, 10:00-10:30
• Seminar Room 1, Newton Institute.

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WHTW01 - Factorisation of matrix functions: New techniques and applications

This talk would focus on one of the main themes of this workshop: the diverse applications of the Wiener-Hopf technique for aerospace in general and turbofan noise problems in particular. First, I will give a theoretical model based on the Wiener-Hopf method (and matrix kernel factorisation) to unveil possible noise control mechanisms due to trailing-edge chevrons on the bypass duct of aircraft engine. Next, I will propose a new testing approach that relies on the forward propagation model based on the Wiener-Hopf method. The key contribution is the development of the inverse acoustic scattering approach for a sensor array by combining compressive sensing in a non-classical way. Last but not least, I will demonstrate some of the new aerospace applications of the Wiener-Hopf technique with recently popular deep neural networks.

This talk is part of the Isaac Newton Institute Seminar Series series.

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