2D simulation of fluid-structure interaction using finite element method |
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| Affiliation: | 1. Department of Civil Engineering, Johns Hopkins University, United States;2. Department of Civil, Mechanical and Materials Science & Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States;1. The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China;2. School of Hydraulic Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China;1. CED/FSI Group, FEE, University of Southampton, Burgess Road, B176, Boldrewood Campus, Southampton SO16 7QF, UK;2. Strategic Research & Technology Policy Group, Lloyd''s Register, B177, Boldrewood Campus, Southampton, SO16 7QF, UK;1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2. School of Hydraulic Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | This paper deals with pressure-based finite element analysis of fluid–structure systems considering the coupled fluid and structural dynamics. The present method uses two-dimensional fluid elements and structural line elements for the numerical simulation of the problem. The equations of motion of the fluid, considered inviscid and compressible, are expressed in terms of the pressure variable alone. The solution of the coupled system is accomplished by solving the two systems separately with the interaction effects at the fluid–solid interface enforced by an iterative scheme. Non-divergent pressure and displacement are obtained simultaneously through iterations. The Galerkin weighted residual method-based FE formulation and the iterative solution procedure are explained in detail followed by some numerical examples. Numerical results are compared with the existing solutions to validate the code for sloshing with fluid–structure coupling. |
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