Some experiments are generally expensive, and in many cases, a physical model cannot be scaled in a practical experimental model. Theoretical researches are usually used for linear or weakly non-linear fluid dynamics. Many scholars have conducted theoretical, experimental and numerical simulation researches in the area. Therefore, researching fluid–structure interaction problems is of great significance in theory and practice. These phenomena include similar characteristics, such as violent free-surface flow, the evolution of the cavity and violent impact load. Typical examples include movement of the torpedo, liquid flow in the turbine, fluid–solid coupling in the pump. Fluid–structure interaction involves the change of free surfaces and the strong coupling between fluid and solid bodies, which involve fix solid boundary, moving boundary and moving body. The obtained numerical results show good agreement with the results from other sources, and clearly demonstrate the effectiveness of the presented SPH method in modelling fluid–structure interaction problems.įluid–structure interaction problems are a very important topic in daily life, mechanical design, coastal and offshore, and many other domains. Finally, the interactions between fluid and floating bodies are researched. Then liquid sloshing problems under different external excitations are simulated, and the complex coupling characteristics can be captured. Secondly, the dam-break flow against a vertical wall is simulated, and the pressure curves are compared with the experiment. Firstly, the violent flow in the mould filling process is simulated to validate that the SPH model can obtain accurate flow patterns with any complex solid boundaries. In this study, an improved SPH method is used to simulate four fluid–structure interaction cases. Smoothed particle hydrodynamics (SPH) is a meshfree, Lagrangian, particle method, which combines the advantages of Euler and Lagrangian method and has special advantages in simulating violent non-linear fluid–structure interaction problems. IET Generation, Transmission & Distribution.IET Electrical Systems in Transportation.IET Cyber-Physical Systems: Theory & Applications.IET Collaborative Intelligent Manufacturing.CAAI Transactions on Intelligence Technology.
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