  Reaction dynamics in collisions of antiprotons on nuclei is investigated
within the Lanzhou quantum molecular dynamics model. The reaction channels of
elastic scattering, annihilation, charge exchange and inelastic collisions of
antiprotons on nucleons have been included in the model. Dynamics on particle
production, in particular pions, kaons, antikaons and hyperons, is investigated
in collisions of $\overline{p}$ on $^{12}$C, $^{20}$Ne, $^{40}$Ca and
$^{181}$Ta from a low to high incident momenta. It is found that the
annihilations of $\overline{p}$ on nucleons are of importance on the dynamics
of particle production in phase space. Hyperons are mainly produced via meson
induced reactions on nucleons and strangeness exchange collisions, which lead
to the delayed emission in antiproton-nucleus collisions.
