This test program solves an example problem (not a benchmark) of
fluid-structure interaction modelled by Navier-Stokes Equations (for
the fluid) and large deformation elasticity (for the solid), with the
full equation being described by a Unified Continuum formulation
described in:

http://www.nada.kth.se/utbildning/grukth/exjobb/rapportlistor/2007/rapporter07/stockli_michael_07010.pdf
