  Using Langevin dynamics simulations, we investigate the dynamics of polymer
translocation into a circular nanocontainer through a nanopore under a driving
force $F$. We observe that the translocation probability initially increases
and then saturates with increasing $F$, independent of $\phi$, which is the
average density of the whole chain in the nanocontainer. The translocation time
distribution undergoes a transition from a Gaussian distribution to an
asymmetric distribution with increasing $\phi$. Moreover, we find a
nonuniversal scaling exponent of the translocation time as chain length,
depending on $\phi$ and $F$. These results are interpreted by the conformation
of the translocated chain in the nanocontainer and the time of an individual
segment passing through the pore during translocation.
