Author(s)

M.A. Tamm & C.T. Dyka

Abstract

Transient fluid-structure interaction using retarded potential and nonlinear finite element M.A. Tamm", C.T. Dyka& "Naval Research Laboratory, Research Computation Division, Washington, USA ^Geo-Centers, Inc., 10903 Indian Head Highway, Forf M/aa/tm^om, MD ^07^, [/^A ABSTRACT The transient analysis of coupled fluid-structure systems is an important area of particular concern to the naval community. However, the general state of affairs in this class of problems is far from fully satisfactory. In this paper, the nonlinear finite element method (FEM) program ABAQUS is used to model the structure and coupled to the fluid realm, which is discretized with the boundary element method (BEM) employing the retarded potential (RP) formulation. The RP method has not been extensively applied in the past to such classes of problems, due primarily to storage and stability requirements necessitated by its temporal and spacially non-local nature. However, the RP approach

Keywords