Vibration analysis of elastic plate submerged in incompressible viscous fluid by coupling finite element method

摘要

The interaction problem of an elastic structure and an incompressible viscous fluid is solved through a computational procedure proposed in this paper. The fluid region is considered to be bounded though without free surface boundary. The discrete fluid domain is described by the stream- line upwind/Petrov-Galerkin finite element method. The arbitrary Lagrangian-Eulerian description is employed to treat the moving interface between the structure and the fluid. The predictor-multicorrec- tor method is adopted to solve the coupling finite element equations. The results of three numerical ex- amples show the effectiveness of the procedure.