한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제34권6호
  • /
  • Pages.419-427
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  • 2020
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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Study on PIV-Based Pressure Estimation Method of Wave Loading under a Fixed Deck

  • Lee, Gang Nam (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Duong, Tien Trung (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Jung, Kwang Hyo (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Suh, Sung Bu (Department of Naval Architecture and Ocean Engineering, Dong-Eui University) ;
  • Lee, Jae Yong (Department of Naval Architecture and Ocean Engineering, Dong-Eui University)
  • 투고 : 2020.10.13
  • 심사 : 2020.10.27
  • 발행 : 2020.12.31
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초록

In this study, a particle image velocimetry (PIV)-based pressure estimation method was investigated, with application to the wave-in-deck loading phenomenon. An experimental study was performed in a two-dimensional wave tank using a fixed deck structure under a focused wave, obtaining local pressures by pressure sensors, global loads by load cells, and instantaneous velocity fields using the PIV measurement technique. The PIV-based pressure estimation method was applied using the Euler equation as the governing equation, and the proper time step for the wave impact pressure was studied using the normalized root-mean-square deviation. The pressure estimation method showed good agreement for the local impact pressure in comparison with the measured pressure by the pressure sensors. However, some differences were observed in the peak pressure due to the limitations of the Euler equation and the sampling rate of the measurement system. Using the estimation method, the pressure fields during wave-in-deck loading were determined in the study, with an analysis of the mechanism of impact and negative pressure occurrence.

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참고문헌

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