  Vorticity of matter generated in noncentral heavy-ion collisions at energies
of the Nuclotron-based Ion Collider fAcility (NICA) at the Joint Institute for
Nuclear Research (JINR) in Dubna is studied. Simulations are performed within
the model of the three-fluid dynamics (3FD) which reproduces the major part of
bulk observables at these energies. Comparison with earlier calculations is
done. Qualitative pattern of the vorticity evolution is analyzed. It is
demonstrated that the vorticity is mainly located at the border between
participants and spectators. In particular, this implies that the relative
$\Lambda$-hyperon polarization should be stronger at rapidities of the
fragmentation regions than that in the midrapidity region.
