받음각을 갖는 평판의 유체 충격 시뮬레이션

• Published in: 大韓造船學會 論文集 Vol. 45; no. 1; pp. 1 - 9
• Main Authors: 이병혁(Byung-Hyuk Lee), 박종천(Jong-Chun Park), 정성준(Sung-Jun Jung), 류민철(Min-Cheol Ryu), 김용수(Yong-Su Kim)
• Format: Journal Article
• Language: Korean
• Published: 대한조선학회 2008
• Subjects: 조선공학; Kernel function(커넬 함수); Non-linear free-surface motions(비선형 자유표면 유동); Wet-drop tests(유체 충격 시험); MPS method(입자 상호작용 모델); CFD(전산유체역학); Impact loads(충격 하중)
• ISSN: 1225-1143; 2287-7355

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.