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Measurement and Dynamic Mode Analysis of Flow-Induced Noise with Combined Proper Orthogonal Decomposition

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Vibration Engineering for a Sustainable Future

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Abstract

Simple techniques have been developed to correlate velocity field and far-field acoustic sound information precisely. In this study, two dynamic mode-decomposition techniques were considered based on POD and LSE applied to the modal analyses of flow-induced noise radiated from a circular cylinder. Experimental results showed that there were minor differences between the two analyzed sets of results obtained by the two techniques. Further, the results showed that the radiated peak sound pressure was strongly related to the first mode of the velocity field in the wake near the cylinder with a pair of fluid lumps having positive and negative streamwise velocity fluctuations on opposite sides of the centerline of the wake.

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Acknowledgment

This work was partially supported by JSPS Kakenhi Grant Number 18 K13691.

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Authors and Affiliations

  1. Toyama Prefectural University, Toyama, Japan

    Osamu Terashima & Reon Nishikawa

  2. Tokyo Metropolitan University, Tokyo, Japan

    Ayumu Inasawa

Authors
  1. Osamu Terashima
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  2. Ayumu Inasawa
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  3. Reon Nishikawa
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Corresponding author

Correspondence to Osamu Terashima .

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Editors and Affiliations

  1. Centre for Audio, Acoustics and Vibration, Faculty of Engineering and IT, University of Technology Sydney, Sydney, Australia

    Sebastian Oberst

  2. Centre for Audio, Acoustics and Vibration, Faculty of Engineering and IT, University of Technology Sydney, Sydney, Australia

    Benjamin Halkon

  3. School of Mechanical and Mechatronic Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, Australia

    Jinchen Ji

  4. School of Mechanical and Mechatronic Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, Australia

    Terry Brown

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Terashima, O., Inasawa, A., Nishikawa, R. (2021). Measurement and Dynamic Mode Analysis of Flow-Induced Noise with Combined Proper Orthogonal Decomposition. In: Oberst, S., Halkon, B., Ji, J., Brown, T. (eds) Vibration Engineering for a Sustainable Future. Springer, Cham. https://doi.org/10.1007/978-3-030-48153-7_5

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  • DOI: https://doi.org/10.1007/978-3-030-48153-7_5

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-48152-0

  • Online ISBN: 978-3-030-48153-7

  • eBook Packages: EngineeringEngineering (R0)

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