Three Dimensional Viscous Finite Element Formulation For Acoustic Fluid Structure Interaction.

ABSTRACT: A three dimensional viscous finite element model is presented in this paper for the analysis of the acoustic fluid structure interaction systems including, but not limited to, the cochlear-based transducers. The model consists of a three dimensional viscous acoustic fluid medium interacting with a two dimensional flat structure domain. The fluid field is governed by the linearized Navier-Stokes equation with the fluid displacements and the pressure chosen as independent variables. The mixed displacement/pressure based formulation is used in the fluid field in order to alleviate the locking in the nearly incompressible fluid. The structure is modeled as a Mindlin plate with or without residual stress. The Hinton-Huang's 9-noded Lagrangian plate element is chosen in order to be compatible wi

SUBMITTER: Cheng L 

PROVIDER: S-EPMC2824573 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature