지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 박종천
- 발행연도
- 2014
- 저작권
- 부산대학교 논문은 저작권에 의해 보호받습니다.
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이 논문의 연구 히스토리 (4)
2014
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초록· 키워드
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Tsunamis are ocean waves generated by movements of earth’s crust. Several geophysical events can lead to this kind of catastrophe: earthquakes, landslides, volcano eruptions and other mechanisms such as underwater explosions. Recently, the great 2011 earthquake in Japan caused by a tsunami, and the tsunami ravaged Kesennuma port. After, needs about simulations of the tsunami on coastal damage are increased. Most of the damage associated with tsunamis are related to their run-up on shoreline. Therefore, well predicting the run-up process is an important aspect of any seismic sea wave mitigation effort.
But, Tsunami has strong nonlinear free surface behavior. So we were used particle method to Tsunami study. But MPS(Moving Particle Simulation) and SPH(Smoothed Particle Hydrodynamics) methods have some serious disadvantages for pressure. The pressure field shows spurious high fluctuation both temporally and spatially.
In this study, we modified PNU-MPS. The developed method was applied to the hydro-static pressure and dam broken problems. And then, a solitary wave traveling over shallow water with slope is numerically simulated and the results are compared with experiments and other numerical results. Finally, the behaviors of a floating body with different drafts are investigated numerically.
It is seen that the refined PNU-MPS method is very useful and applicable to simulate the coastal inundation and disaster due to tsunami.
But, Tsunami has strong nonlinear free surface behavior. So we were used particle method to Tsunami study. But MPS(Moving Particle Simulation) and SPH(Smoothed Particle Hydrodynamics) methods have some serious disadvantages for pressure. The pressure field shows spurious high fluctuation both temporally and spatially.
In this study, we modified PNU-MPS. The developed method was applied to the hydro-static pressure and dam broken problems. And then, a solitary wave traveling over shallow water with slope is numerically simulated and the results are compared with experiments and other numerical results. Finally, the behaviors of a floating body with different drafts are investigated numerically.
It is seen that the refined PNU-MPS method is very useful and applicable to simulate the coastal inundation and disaster due to tsunami.
목차
1. 서론 12. 수치 시뮬레이션 기법 42.1 입자법의 개요 42.2 지배방정식 82.3 PNU-MPS법의 입자간 상호작용 모델 92.4 경계조건 262.5 충돌모델 282.6 강체 운동의 표현 302.7 Sub-Particle scale (SPS) 난류모델 342.8 개선된 PNU-MPS법 373. 고정확도 입자법 시뮬레이션의 검증 413.1 정수압 시뮬레이션 413.2 댐 붕괴 시뮬레이션 454. 고립파 재현을 위한 고정확도 입자법 시뮬레이션 484.1 경사면에서 지진해일의 파처오름 시뮬레이션 485. 복잡한 지형의 해안에서의 고립파 전파를 위한 고정확도 입자법 시뮬레이션 605.1 복잡한 지형을 가진 해안에서의 고립파 전파 605.2 고립파 전파에서의 입자법과 격자법의 비교 676. 지진해일중 해안안벽 근처의 부유체의 동적 거동에 관한 고정확도 입자법 시뮬레이션 696.1 지진해일중 해안안벽 근처의 부유체의 동적 거동 시뮬레이션 697. 결론 74REFERENCE 76ABSTRACT 79
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