An arbitrary Lagrangian–Eulerian finite element formulation for a poroelasticity problem stemming from mixture theory
Journal Article
·
· Computer Methods in Applied Mechanics and Engineering
- Pennsylvania State Univ., University Park, PA (United States). Center for Neural Engineering
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Computational Simulation Group
In this paper, a finite element formulation is developed for a poroelastic medium consisting of an incompressible hyperelastic skeleton saturated by an incompressible fluid. The governing equations stem from mixture theory and the application is motivated by the study of interstitial fluid flow in brain tissue. The formulation is based on the adoption of an arbitrary Lagrangian–Eulerian (ALE) perspective. We focus on a flow regime in which inertia forces are negligible. Finally, the stability and convergence of the formulation is discussed, and numerical results demonstrate agreement with the theory.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- National Science Foundation (NSF) (United States); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1429778
- Alternate ID(s):
- OSTI ID: 1550052
- Report Number(s):
- SAND2017--4971J; 653205
- Journal Information:
- Computer Methods in Applied Mechanics and Engineering, Journal Name: Computer Methods in Applied Mechanics and Engineering Vol. 323; ISSN 0045-7825
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
| Functional hyperemia drives fluid exchange in the paravascular space | posted_content | November 2019 |
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| Functional hyperemia drives fluid exchange in the paravascular space | preprint | August 2020 |
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