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Drift force on a bottom-mounted slightly porous vertical cylinder fixed in regular waves

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Abstract

 Explicit expressions are derived for the drift force that will act on a bottom-mounted, slightly porous vertical cylinder fixed in regular waves. The drift-force expressions derived both from the near-field and the far-field are shown. It is indicated, and numerically demonstrated, that the conventional far-field formula does not hold for a porous body, but needs the additional term of a near-field body-surface integration.

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Authors and Affiliations

  1. Department of Environmental Studies, Graduate School of Frontier Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, , , , , , JP

    Hiroshi Kagemoto

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  1. Hiroshi Kagemoto
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Received: July 4, 2002 / Accepted: November 6, 2002

Acknowledgment. The author would like to acknowledge Prof. Kashiwagi, of Kyushu University, for indicating the work of Havelock relating to Eq. 20.

Address correspondence to: H. Kagemoto (e-mail: kagemoto@k.u-tokyo.ac.jp)

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Kagemoto, H. Drift force on a bottom-mounted slightly porous vertical cylinder fixed in regular waves. J Mar Sci Technol 7, 128–136 (2003). https://doi.org/10.1007/s007730300003

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  • DOI: https://doi.org/10.1007/s007730300003

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