Fluid-structure interaction benchmark problem for stationary, laminar, and
incompressible flow around a cylinder with an attached elastic beam. Although it
is not possible to derive an analytical solution to these test cases, numerical
solutions to benchmark reference quantities have been established for the beam
deformation, drag, and lift forces .
The test configurations consider a solid cylinder centered at (0.2, 0.2) with
diameter d = 0.1 in a l = 2.2 by h = 0.41 rectangular channel. The fluid
is assumed to have a constant density and viscosity, and a fully developed
parabolic velocity profile is prescribed at the inlet. A beam of length 0.4
and width 0.02 is fixed to the end of the cylinder. First a static solution
with a Reynolds number Re = 20 is considered, and then an instationary
solution with Re = 100.
This model is available as an automated tutorial by selecting Model Examples
and Tutorials… > Multiphysics > Fluid-Structure Interaction - Elastic
Beam from the File menu. Or alternatively, follow the linked step-by-step
 Hron J. A monolithic FEM/multigrid solver for ALE
formulation of fluid structure interaction with application in
biomechanics. In H.-J. Bungartz and M. Schaefer, editors,
Fluid-Structure Interaction: Modelling, Simulation, Optimisation,
LLNCSE. Springer, 2006.