대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제49권6호
  • /
  • Pages.484-490
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  • 2012
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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문풀 내 압력 변동에 대한 POD 분석

Proper Orthogonal Decomposition of Pressure Fluctuations in Moonpool

  • Lee, Sang Bong (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.) ;
  • Woo, Bum (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.) ;
  • Park, Dong Woo (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.) ;
  • Ahn, You Won (Initial Design Department, Hyundai Heavy Industries Co. Ltd.) ;
  • Go, Seok Cheon (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.) ;
  • Seo, Heung Won (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.)
  • 투고 : 2012.08.20
  • 심사 : 2012.11.19
  • 발행 : 2012.12.20
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초록

Experiments of circulating water channel and two dimensional numerical simulations were performed to investigate the fluctuating characteristics of pressure in moonpool. Based on the quasi-two dimensional characteristics of pressure fluctuations disclosed by the spatial cross-correlations, the numerical results showed qualitatively good agreement with experimental data. Proper orthogonal decomposition was employed to the spatial distributions of pressure fluctuations in order to find the first and second modes of fluctuations. The first mode of pressure fluctuations showed that the fluctuating characteristics of pressure were related to the behaviors of vortical structures. The velocity fluctuations were conditionally averaged to make clear that the coherent structures were responsible for the pressure fluctuations in moonpool.

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참고문헌

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피인용 문헌

  1. Statistical Reliability Analysis of Numerical Simulation for Prediction of Model-Ship Resistance vol.51, pp.4, 2014, https://doi.org/10.3744/SNAK.2014.51.4.321
  2. Effects of Scale Ratio on Flow Characteristics in Moonpool vol.22, pp.1, 2016, https://doi.org/10.7837/kosomes.2016.22.1.118