A Monolithic Finite Element Model for Fluid–Structure Interaction problems at low Reynolds numbers with Application to Cell Mechanics

Thesis defense

Friday 21 April 2017
from 10:30
to 11:30 at
FA32

Speaker :

Jakob Beran (Stockholm University, Department of Physics)

Abstract :

Fluid–structure interaction problems can be found in various fields in science
and engineering. A current problem is found in computational biology, where
primary cilium mechanosensation on a single cell model is studied. The cell
mechanical problem is characterised by laminar flow where the Reynolds number
is low.
The open-source software and FEniCS-HPC/Unicorn is used to solve fluid–
structure interaction problems, and is mainly used for fluid flows at high Reynolds
numbers. In this project, the Unicorn solver has been extended to apply to fluid
flows at low Reynolds numbers, and in particular to a simple cell mechanical
model problem where the deflection of a primary cilium is studied.
The results show that the developed solver apply to problems where the
deformation of the structure is moderate. For large mesh deformations, further
development of the program code is needed.