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논문 기본 정보

자료유형
학술저널
저자정보
김경성 (동명대학교) 박동우 (동명대학교)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제31권 제6호(통권 제139호)
발행연도
2017.12
수록면
388 - 396 (9page)
DOI
10.26748/KSOE.2017.12.31.6.388

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초록· 키워드

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A Lagrangian approach based computational fluid dynamics (CFD) was used to simulate large and/or sharp deformations and fragmentations of interfaces, including free surfaces, through tracing each particle with physical quantities. According to the concept of the particle-based CFD method, it is possible to apply it to both fluid particles and solid particles such as sand, gravel, and rock. However, the presence of more than two different phases in the same domain can make it complicated to calculate the interaction between different phases. In order to solve multiphase problems, particle interaction models for multiphase problems, including surface tension, buoyancy-correction, and interface boundary condition models, were newly adopted into the moving particle semi-implicit (MPS) method. The newly developed MPS method was used to simulate a typical validation problem involving dam breaking. Because the soil and other particles, excluding the water, may have different viscosities, various viscosity coefficients were applied in the simulations for validation. The newly developed and validated MPS method was used to simulate the mobile beds induced by broken dam flows. The effects of the viscosity on soil particles were also investigated.

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ABSTRACT
1. 서론
2. Moving Particle Simulation
3. 수치해석 모델 및 결과
4. 결론 및 고찰
References

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