A coupled NMM-SPH method for fluid-structure interaction problems |
| |
| Affiliation: | 1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China;2. CCCC Tianjin Port Engineering Institute, Co. Ltd., Tianjin 300222, China;3. CCCC First Harbor Engineering Company, Co. Ltd., Tianjin 300461, China;4. Key Laboratory of Geotechnical Engineering of Tianjin, Tianjin 300222, China;5. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;6. Department of Physics, University of Toronto, ON M5S 1A7, Canada;1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China;2. Department of Civil Engineering, Monash University, Clayton, VIC 3800, Australia;3. Key Laboratory of Mechanics on Disaster and Environment in Western China (The Ministry of Education of China), College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu 730000, China;1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China;2. Department of Civil Engineering, Monash University, Clayton, VIC 3800, Australia;3. Key Laboratory of Geotechnical Mechanics and Engineering, Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan 430010, China;1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;2. Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China;1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China;2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| |
| Abstract: | The main challenges in the numerical simulation of fluid–structure interaction (FSI) problems include the solid fracture, the free surface fluid flow, and the interactions between the solid and the fluid. Aiming to improve the treatment of these issues, a new coupled scheme is developed in this paper. For the solid structure, the Numerical Manifold Method (NMM) is adopted, in which the solid is allowed to change from continuum to discontinuum. The Smoothed Particle Hydrodynamics (SPH) method, which is suitable for free interface flow problem, is used to model the motion of fluids. A contact algorithm is then developed to handle the interaction between NMM elements and SPH particles. Three numerical examples are tested to validate the coupled NMM-SPH method, including the hydrostatic pressure test, dam-break simulation and crack propagation of a gravity dam under hydraulic pressure. Numerical modeling results indicate that the coupled NMM-SPH method can not only simulate the interaction of the solid structure and the fluid as in conventional methods, but also can predict the failure of the solid structure. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
