Algebraic approach to preconditioning in poroelasticity revisited

Tomáš Luber

Oct. 16, 2018, 3:30 p.m. S2 054

In this talk, we will consider possible norms and preconditioners for the
time-step problem of the Biot's model coming from implicit Euler
discretization in time and finite element discretization in space. The Biot's
model is used in a three field form having displacement, pressure and flux
fields as unknowns leading to a block 3x3 structure. A class of
preconditioners based on Schur complements that lead to a relative condition
number independent on model parameters will be discussed and compared with
other approaches.