Ocean Systems Engineering

  • 제10권3호
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  • Pages.267-287
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  • 2020
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
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Non-dimensional analysis of cylindrical objects freely dropped into water in two dimensions (2D)

  • Zhen, Yi (Natural Sciences Department, Southern University at New Orleans) ;
  • Yu, Xiaochuan (School of Naval Architecture and Marine Engineering, University of New Orleans) ;
  • Meng, Haozhan (Department of Electrical and Computer Engineering, University of New Orleans) ;
  • Li, Linxiong (Mathematics Department, University of New Orleans)
  • 투고 : 2020.06.11
  • 심사 : 2020.09.02
  • 발행 : 2020.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

The dropped objects are identified as one of the top ten causes of fatalities and serious injuries in the oil and gas industry. It is of importance to understand dynamics of dropped objects under water to accurately predict the motion of dropped objects and protect the underwater structures and facilities from being damaged. In this paper, we study non-dimensionalization of two-dimensional (2D) theory for dropped cylindrical objects. Non-dimensionalization helps to reduce the number of free parameters, identify the relative size of effects of force and moments, and gain a deeper insight of the essential nature of dynamics of dropped cylindrical objects under water. The resulting simulations of dimensionless trajectory confirms that drop angle, trailing edge and drag coefficient have the significant effects on dynamics of trajectories and landing location of dropped cylindrical objects under water.

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참고문헌

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