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받음각을 갖는 평판의 유체 충격 시뮬레이션

Numerical Simulation for Fluid Impact Loads by Flat Plate with Incident Angles

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참고문헌

키워드

주제분류조선공학

초록

The free-surface motions interacting with structures are investigated numerically using the Moving Particle Semi-implicit (MPS) method proposed by Koshizuka et al. (1996) for solving incompressible flow. In the method, Lagrangian moving particles are used instead of Eulerian approach using grid system. Therefore the terms of time derivatives in Navier-Stokes equation can be directly calculated without any numerical diffusion or instabilities due to the fully Lagrangian treatment of fluid particles and topological failure never occur. The MPS method is applied to the numerical study on the fluid impact loads for wet-drop tests in a LNG tank, and the results are compared with experimental ones.

Abstract

The free-surface motions interacting with structures are investigated numerically using the Moving Particle Semi-implicit (MPS) method proposed by Koshizuka et al. (1996) for solving incompressible flow. In the method, Lagrangian moving particles are used instead of Eulerian approach using grid system. Therefore the terms of time derivatives in Navier-Stokes equation can be directly calculated without any numerical diffusion or instabilities due to the fully Lagrangian treatment of fluid particles and topological failure never occur. The MPS method is applied to the numerical study on the fluid impact loads for wet-drop tests in a LNG tank, and the results are compared with experimental ones.

참고문헌 (10)

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  4. Koshizuka, S., "Moving particle semi-implicit method for fragmentation of incompressible fluid", Numerical Science and Engineering, 123, pp.421~434 (1996)
  5. Koshizuka, S., "Numerical analysis of breaking waves using the moving particles semi-implicit method", Int. J. Math. Fluid, 26, pp.751~769 (1998)
  6. 이병혁, "비압축성 유동 해석을 위한 입자법 수치 시뮬레이션 기술 개발", 한국해양공학회지, 21(4), pp.8~14 (2007), 한국해양공학회
  7. Miyata, H., "Ch.5 Wave breaking simulation In: Potential Flow of Fluids", pp.149~176 (1995), Computational Mechanics Publications
  8. Monaghan, J.J., "An Introduction to SPH", Comput. Phys. Comn, 48, pp.89~96 (1988)
  9. Sussman, M., "A level set approach for computing solutions to incompressible two-phase flow", Journal of Computational Physics, 114, pp.272~280 (1994)
  10. Wagner, V. H., "Über Stoss und Gleitvorgänge an der Oberfläche von Flüssigkeiten", Zeitschrift für angewandte Mathematik und Mechanik, 12, pp.193~215 (1932)

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