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Flow Control Near a Square Prism with the Help of Frontal Flat Plates

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Advances in Dynamical Systems and Control

Part of the book series: Studies in Systems, Decision and Control ((SSDC,volume 69))

Abstract

The case of two symmetrical flat plates fixed in front of a square prism for passive control of a near-body flow pattern is numerically investigated at moderate Reynolds numbers. The plates are used for generation of a pair of the frontal stable vortices which would be able suppress flow separation in the neighbor body edges. The improvement of body loads in this case is achieved by wake constriction and reducing the difference between bottom and frontal pressure. The control scheme presented was found to be sensitive to its geometrical parameters. The dynamic system analysis is attracted for studying the flow topology in the area and deriving optimum parameters of the control device. It was found that the plate length \(l\approx 0.2d\) and \(r\approx 0.16d\), where d is the prism side and r is the distance between the plate base and the prism edge, is the appropriate choice which permits reduce the prism drag approximately per 20 %. An influence of the Reynolds number on the effectiveness of the control scheme is also investigated.

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Authors and Affiliations

  1. Institute of Hydromechanics, National Academy of Sciences of Ukraine, Zheliabova St. 8/4, Kyiv, 03680, Ukraine

    Iryna M. Gorban

  2. Institute for Applied System Analysis, National Technical University of Ukraine “Kyiv Polytechnic Institute”, Peremogy Ave. 37, Build 35, Kyiv, 03056, Ukraine

    Olha V. Khomenko

Authors
  1. Iryna M. Gorban
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  2. Olha V. Khomenko
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Correspondence to Olha V. Khomenko .

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Editors and Affiliations

  1. Lomonosov Moscow State University, Moscow, Russia

    Victor A. Sadovnichiy

  2. Kyiv Polytechnic Institute, National Technical University of Ukraine, Kiev, Ukraine

    Mikhail Z. Zgurovsky

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Gorban, I.M., Khomenko, O.V. (2016). Flow Control Near a Square Prism with the Help of Frontal Flat Plates. In: Sadovnichiy, V., Zgurovsky, M. (eds) Advances in Dynamical Systems and Control. Studies in Systems, Decision and Control, vol 69. Springer, Cham. https://doi.org/10.1007/978-3-319-40673-2_17

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  • DOI: https://doi.org/10.1007/978-3-319-40673-2_17

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-40672-5

  • Online ISBN: 978-3-319-40673-2

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