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

  • 제47권4호
  • /
  • Pages.525-532
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  • 2010
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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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SPH법을 이용한 해안에서의 2차원 비선형파 수치시뮬레이션

Numerical Simulation of Two-dimensional Nonlinear Waves on Beaches Using a Smoothed Particle Hydrodynamics Method

  • 김철호 (인하대학교 대학원 조선해양공학과) ;
  • 이영길 (인하대학교 기계공학부 조선해양공학) ;
  • 정광열 (인하대학교 대학원 조선해양공학과)
  • Kim, Cheol-Ho (Dept. of Naval Architecture and Ocean Engineering, Graduate School of Inha University) ;
  • Lee, Young-Gill (Dept. of Naval Architecture and Ocean Engineering, Inha University) ;
  • Jeong, Kwang-Leol (Dept. of Naval Architecture and Ocean Engineering, Graduate School of Inha University)
  • 투고 : 2010.01.27
  • 심사 : 2010.07.02
  • 발행 : 2010.08.20
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초록

In this paper, wave breakers which occur in two dimensional coasts are simulated using a SPH(Smoothed Particle Hydrodynamics) method which represents the movement of fluidic physical volume with particles. As continuative fluid is approximated to the particles, the simulations are performed using fully Lagrangian method without any grid system. Two-dimensional Navier-Stokes equations and continuity equation are used for the numerical simulations. To generate incident waves, a piston type wavemaker is employed. The accuracy of the wave which is numerically generated by the wavemaker is verified by comparing with analytical results. The computations are carried out with various wave heights and slopes. The wave patterns generated through the numerical simulations are compared with several existing experimental and computational results. Agreement between the experimental data and the computation results is comparatively good. Also, the breaker depth index and the breaker height index from the present calculations are compared with the existing experimental results, and the tendency is very similar.

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참고문헌

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