Goal-oriented error estimation in the analysis of fluid flows with structural interactions

We present some developments for the extension of goal-oriented error estimation procedures to the analysis of Navier–Stokes incompressible fluid flows with structural interactions. Particular focus is given on error assessment of specific quantities of interest defined on the structural part. The goal is to establish relatively coarse meshes to model the fluid flow but achieve acceptable accuracy in the quantities of interest. A nonlinear goal-oriented error estimation procedure is presented which is applicable to general nonlinear analyses. Some illustrative solutions using ADINA are given.