3. Modeling A

3.1. Characteristics of modeling

3D Modeling_ INCO_UP

Young’s modulus 1, Poisson’s ratio 0.4999

A Stokes problem is modelled. A preconditioner with 2 levels is defined that treats in a grouped manner the components DX, DY, DZ on the one hand and the component PRES on the other hand. An approximation of the Schur complement in pressure is used, which is preconditioned by a Jacobi method, and a multigrid method is used for the movements.