  Dissipating of disorder quantum vortices in an annular two-dimensional
Bose-Einstein condensate can form a macroscopic persistent flow of atoms. We
propose a protocol to create persistent flow with high winding number based on
a double concentric ring-shaped configuration. We find that a sudden geometric
quench of the trap from single ring-shape into double concentric ring-shape
will enhance the circulation flow in the outer ring-shaped region of the trap
when the initial state of the condensate is with randomly distributed vortices
of the same charge. The circulation flows that we created are with high
stability and good uniformity free from topological excitations. Our study is
promising for new atomtronic designing, and is also helpful for quantitatively
understanding quantum tunneling and interacting quantum systems driven far from
equilibrium.
