Two-Dimensional VIV Simulation of a Cylinder Close to a Wall with High Reynolds Number by Overset Mesh

DOI 機関リポジトリ (HANDLE) オープンアクセス
  • Li Ruan
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Karma Mohamed
    Research Institute for Applied Mechanics, Kyushu University
  • 胡 長洪
    Research Institute for Applied Mechanics, Kyushu University

説明

The numerical study of vortex-induced vibration (VIV) of a near-wall cylinder, as well as the impacts of the wall on VIV response, is presented. The Reynolds number for a cylinder near a wall is lower than that of an isolated cylinder when the max vibration amplitude occurs. The max vibration amplitude of the cylinder near a wall is less than that of an isolated cylinder. Moreover, the vortex shedding observed from a wall interacts with the vortex shedding emanating from a cylinder, weakening it. As a near-wall cylinder enters the lock-in region, the vortex shedding from a wall interact with that from the cylinder, which promote separation of the wall boundary layer and alter the wake vortex structure.

収録刊行物

  • Evergreen

    Evergreen 10 (1), 219-229, 2023-03

    九州大学グリーンテクノロジー研究教育センター

キーワード

詳細情報 詳細情報について

  • CRID
    1390014404396715648
  • DOI
    10.5109/6781072
  • ISSN
    24325953
    21890420
  • HANDLE
    2324/6781072
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • IRDB
    • Crossref
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用可

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