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VIV해석을 위한 이산 보오텍스방법의 이용

Use of Discrete Vortex Method for VIV Response Analysis

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참고문헌

키워드

주제분류조선공학

초록

DVM (Discrete Vortex Method) is a numerical scheme that handles discrete vortex particles to express continuous vorticity field. This scheme is proper to VIV (Vortex Induced Vibration) analysis because there is no need to generate field grids and VIV is caused by separated vorticity from the body.When DVM is applied to VIV analysis, there are some applicable schemes such as using vortex blobs, integral method for computing induced velocity, etc. In this study, the influences of these schemes are investigated and the practical scheme that is appropriate for VIV analysis is proposed.

Abstract

DVM (Discrete Vortex Method) is a numerical scheme that handles discrete vortex particles to express continuous vorticity field. This scheme is proper to VIV (Vortex Induced Vibration) analysis because there is no need to generate field grids and VIV is caused by separated vorticity from the body.When DVM is applied to VIV analysis, there are some applicable schemes such as using vortex blobs, integral method for computing induced velocity, etc. In this study, the influences of these schemes are investigated and the practical scheme that is appropriate for VIV analysis is proposed.

참고문헌 (15)

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  8. 이승재, "Lagrangian 보오텍스 방법에서의 압력장 계산", 대한조선학회 논문집, 41(1), pp.23~30 (2004), 대한조선학회
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  11. Ploumhans P., "Vortex methods for high-resolution simulations of viscous flow past bluff bodies of general geometry", Journal of Computational Physics, 165, pp.354~406 (2000)
  12. Rheem C.K., "Numerical Analysis of Cylindrical Structure VIV Response by Discrete Vortex Method", Journal of the Japan Society of Naval Architects and Ocean Engineers, 86, pp.249~257 (2008)
  13. Sumer B.M., "Hydrodynamics around cylindrical structures" (1997), World scientific
  14. Wanderley J.B.V., "Two-dimensional numerical simulation of vortex induced vibration of a circular cylinder", Proc. of the 26th International Conference on Offshore Mechanics and Arctic Engineering (2007)
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