  Heavy quarks (i.e. charm and beauty) in heavy-ion collisions are initially
produced out of kinetic equilibrium via hard partonic scattering processes.
However, recent measurements of anisotropic flow of charmed hadrons pose the
question regarding the thermalization of heavy quarks in the quark-gluon plasma
(QGP). Exploiting a mapping between transport theory and fluid dynamics, we
develop a fluid-dynamic description for charm quarks and show results for
charm-hadron momentum distributions. Inspired by recent Lattice-QCD (LQCD)
calculations, we show that a late hydrodynamization within the lifetime of the
QGP is possible also for beauty quarks.
