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

  • 제48권2호
  • /
  • Pages.107-112
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  • 2011
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  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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수치 파동 수조를 이용한 부유체의 문풀 (Moon Pool) 유동해석

Flow Analysis of Two-Dimensional Floating Body with Moon Pool Using a Numerical Wave Tank

  • 구원철 (울산대학교 조선해양공학부) ;
  • 이경록 (울산대학교 조선해양공학부)
  • Koo, Weon-Cheol (School of Naval Architecture & Ocean Engineering, University of Ulsan) ;
  • Lee, Kyoung-Rok (School of Naval Architecture & Ocean Engineering, University of Ulsan)
  • 투고 : 2010.09.01
  • 심사 : 2011.01.07
  • 발행 : 2011.04.20
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초록

The aim of this study is to analyze the hydrodynamic properties of a 2D floating body with moon pool using a 2D fully nonlinear Numerical Wave Tank(NWT). This NWT was developed based on the Boundary Element Method(BEM) with potential theory and fully nonlinear free surface boundary conditions. Free surface elevations in the moon pool were calculated in the time domain for various frequencies of forced body motions. The added-mass and damping coefficients of the heaving body were also obtained. The present numerical results were compared with the analytic and experimental results and their accuracy was verified.

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참고문헌

  1. Faltinsen, O.M. Rognebakke, O.F. & Timokham, A.N., 2007. Two-dimensional resonant piston-like sloshing in a Moon pool. Journal of Fluid Mechanics, Vol.575, pp.359-397. https://doi.org/10.1017/S002211200600440X
  2. Ha, M.K. Kim, M.S. Paik, B.K. & Park, C.H., 2002. Motion and sloshing analysis for new concept of offshore storage unit. Journal of Ocean Engineering and Technology, 16(1), pp. 1-7.
  3. Heo, J.K. & Park, J.C., 2009. A CFD Analysis on a 2-D Floating Body with a Moonpool under Forced Heave Motion. Proceedings of the Korea Committee for Ocean Resources and Engineering Conference.
  4. Hong, S.Y. et al., 2005. Numerical and experimental study on hydrodynamic interaction of side-by-side moored multiple vessels. Ocean Engineering, 32, pp.783-801. https://doi.org/10.1016/j.oceaneng.2004.10.003
  5. Koo, B.J. & Kim, M.H., 2005. Hydrodynamic interactions and relative motions of two floating platforms with mooring lines in side-by-side offloading operation. Ocean Engineering, 27, pp.292-310.
  6. Kim, D.J. Park, J.W. Kim, J.N. & Jeong, U.C., 2006. An Experimental Study on the Moonpool Characteristics of a Cleaning Ship for Ocean Environment Purification. Journal of Ocean Engineering and Technology, 20(2), pp. 46-51.
  7. Kristiansen, T. & Faltinsen, O.M., 2008. Application of a vortex tracking method to the piston-like behavior in a semi-entrained vertical gap. Applied Ocean Research, 30, pp.1-16. https://doi.org/10.1016/j.apor.2008.02.003
  8. Yoo, J.H. & Choi, S.H., 2004. Performance of Drill ship with Moonpool and Azimuth Thrusters. Journal of Society of Naval Architects of Korea, 41(6), pp.33-39. https://doi.org/10.3744/SNAK.2004.41.6.033

피인용 문헌

  1. Characteristics of Heaving Motion of Hollow Circular Cylinder vol.27, pp.5, 2013, https://doi.org/10.5574/KSOE.2013.27.5.043