Fondecyt project

Numerical Methods for Nonlinear Poroelasticity and Related Models with Applications in Biomedicine and Engineering

Programme
ANID, Fondecyt Postdoctoral Programme 2026
Project
N.º 3260398
Principal investigator
Cristian Inzunza
Sponsoring researcher
Sergio Caucao
Start
April 2026

Aims

The project develops and analyses mixed and mixed-primal finite element methods for nonlinear poroelasticity and related models, in which Biot's equations are coupled with nonlinear flow laws such as Brinkman and Forchheimer, and with transport or thermal effects.

  • Variational formulations in Hilbert and Banach spaces, with proofs of existence, uniqueness and continuous dependence on the data.
  • Discrete schemes that are stable and robust with respect to the physical parameters, in particular free of volumetric locking.
  • A priori and a posteriori error estimates, and adaptive algorithms based on the latter.
  • Numerical experiments motivated by applications in biomedicine and engineering.

Outputs 4

  1. 2026

    A pseudostress-based fully mixed formulation for the unsteady Biot–Brinkman model

    J. Camaño, S. Caucao, C. Inzunza

    Preprint, GIANuC², Universidad Católica de la Santísima Concepción

  2. 2026

    A pseudostress-based fully mixed finite element method for the stationary Biot–Poisson–Nernst–Planck system

    C. Inzunza

    Submitted

  3. 2026

    Mixed finite element methods for a heat-assisted model of sedimentation

    J. Careaga, C. Inzunza

    arXiv preprint arXiv:2610.28903

  4. 2026

    A locking-free mixed-primal formulation for the Biot–Brinkman–Forchheimer model

    J. Camaño, S. Caucao, C. Inzunza

    Preprint 2026-9, GIANuC², Universidad Católica de la Santísima Concepción

Suggested acknowledgement

This work was supported by ANID–Chile through Fondecyt Postdoctorado project 3260398.