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Three-Dimensional Time-Averaged Flow Fields in the Turbulent Wake of a Surface-Mounted Finite-Height Square Prism

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Fluid-Structure-Sound Interactions and Control (FSSIC 2017)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

The wake of a three-dimensional (3D) time-averaged flow field over a surface-mounted finite-height square prism of aspect ratio AR = 3 at a Reynolds number Re = 500 has been investigated using Large Eddy Simulation (LES). The topological characteristics and interactions between the dynamic structures in the prism wake were assessed using planar streamlines and the second invariant vortex identification criterion. The shear layer from the prism free end, which descends into a pair of counter-rotating tip vortices due to downwash, is seen in the streamwise planes in the wake. Other features identified in the simulation include the mean recirculation zone behind the prism and a complex set of discrete streamwise vortex tubes in the wake.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada

    R. Chakravarty, N. Moazamigoodarzi, D. J. Bergstrom & D. Sumner

Authors
  1. R. Chakravarty
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  2. N. Moazamigoodarzi
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  3. D. J. Bergstrom
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  4. D. Sumner
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Corresponding author

Correspondence to D. J. Bergstrom .

Editor information

Editors and Affiliations

  1. Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, China

    Yu Zhou

  2. Nihon University, Tokyo, Japan

    Motoaki Kimura

  3. Nihon University, Tokyo, Japan

    Guoyi Peng

  4. Curtin University, Perth, Western Autralia, Australia

    A.D. Lucey

  5. The University of Hong Kong, Hong Kong, China

    Lixi Huang

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© 2019 Springer Nature Singapore Pte Ltd.

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Chakravarty, R., Moazamigoodarzi, N., Bergstrom, D.J., Sumner, D. (2019). Three-Dimensional Time-Averaged Flow Fields in the Turbulent Wake of a Surface-Mounted Finite-Height Square Prism. In: Zhou, Y., Kimura, M., Peng, G., Lucey, A., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. FSSIC 2017. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-7542-1_23

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  • DOI: https://doi.org/10.1007/978-981-10-7542-1_23

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-7541-4

  • Online ISBN: 978-981-10-7542-1

  • eBook Packages: EngineeringEngineering (R0)

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