Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Comparison of Fluid Modeling Methods Based on SPH and ISPH for a Buoy Design for a Wave Energy Converter

파력발전기 부유체설계를 위한 SPH와 ISPH 유체모델링 기법 비교

  • 전철웅 (부경대학교 기계설계공학과) ;
  • 손정현 (부경대학교 기계설계공학과) ;
  • 양민석 (부경대학교 기계설계공학과)
  • Received : 2017.03.16
  • Accepted : 2017.05.11
  • Published : 2017.06.30
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Abstract

The buoy of the wave energy converter moves by direct contact with the fluid. In order to design a buoy by using the numerical method, it is necessary to analyze not only the contact with the fluid but also the exact behavior of the fluid. In this paper, differences between weakly compressible smoothed particle hydrodynamics (WCSPH) and incompressible smoothed particle hydrodynamics (ISPH) are compared and analyzed for two-dimensional dam breaking simulation. ABAQUS, which is a commercial analysis program, is used for WCSPH analysis. A laboratory code is developed for ISPH analysis. The surface shape, the velocity, and the pressure pattern of the fluid are compared. The results of the laboratory code show the similar tendencies with those of ABAQUS, and there is a little difference in the pressure result.

Keywords

Acknowledgement

Grant : 부유식 파력발전시스템의 성능 개선을 위한 유체-다물체 연성해석 기술개발

Supported by : 한국해양과학기술진흥원

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