직교격자계 기반의 수치계산법을 이용한 슬래밍 충격압력의 연구
A Study on Slamming Impact Pressure by a Numerical Method based on the Cartesian-grid System
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In this study, numerical simulations of slamming impact pressure acting on the flat plate and wedge type models using the cartesian-grid system and Modified Marker-Density Method (MMD method) were performed and the results were examined. The flat plate and wedge type models were selected as target objects, the turbulence characteristics were considered by applying the Sub-Grid Scale (SGS) turbulence model. Through this study, how the pressure acting on the target objects according to the incident angle influences the slamming impact pressure was examined and the results were compared with the flow characteristics of other experimental results. Also, the degree of slamming impact pressure is evaluated with respect to the cartesian-grid system and MMD method, which is easy to use and has a high degree of calculation for free surface.
Abstract
In this study, numerical simulations of slamming impact pressure acting on the flat plate and wedge type models using the cartesian-grid system and Modified Marker-Density Method (MMD method) were performed and the results were examined. The flat plate and wedge type models were selected as target objects, the turbulence characteristics were considered by applying the Sub-Grid Scale (SGS) turbulence model. Through this study, how the pressure acting on the target objects according to the incident angle influences the slamming impact pressure was examined and the results were compared with the flow characteristics of other experimental results. Also, the degree of slamming impact pressure is evaluated with respect to the cartesian-grid system and MMD method, which is easy to use and has a high degree of calculation for free surface.
참고문헌 (11)
- Hong, S. Y., "Comparative study of water-impact problem for ship section and wedge drops", International Journal of Offshore and Polar Engineering, 27(2), pp.123~134 (2017)
- 정광열, "수정된 밀도함수법을 이용한 Spilling Breaker의 수치시뮬레이션", 대한조선학회 논문집, 51(1), pp.58~66 (2014), 대한조선학회
- 김경환, "대칭 및 비대칭 2차원 쐐기의 입수 충격에 관한 실험적 연구", 한국해양공학회지, 28(3), pp.209~217 (2014), 한국해양공학회
- Lee, Y. G., "The marker-density method in cartesian grids applied to nonlinear ship waves", Computer & Fluids, 63(30), pp.57~69 (2012)
- Park, I. R., "Analysis of flow around a rigid body on water-entry & exit problem", Journal of the Society of Naval Architects of Korea, 36(4), pp.37~47 (1999)
- Park, J. C., "Fully non-linear free-surface simulations by a 3D viscous numerical wave tank", International Journal for Numerical Methods in Fluids, 29(6), pp.685~703 (1999)
- 박준수, "슬래밍 충격 압력에 대한 연구", 한국해양공학회지, 23(1), pp.67~73 (2009), 한국해양공학회
- 신현경, "낙하실험에 의한 슬래밍 충격의 실험 연구", 대한조선학회 논문집, 47(3), pp.410~420 (2010), 대한조선학회
- The impact of seaplane floats during landing, "Von Karman, T.", National Advisory Committee for Aeronautics, 1~8, pp.No.321 (1929)
- Wagner, V. H., "Über Stoss und Gleitvorgänge an der Oberfläche von Flüssigkeiten", Aeischrift fuur Angewandle Mathematik und Mechanik, 12, pp.193~215 (1932)
- 염덕준, "2차원 쐐기형 구조물의 슬래밍 현상에 대한 수치 유동해석", 대한조선학회 논문집, 45(5), pp.477~486 (2008), 대한조선학회