The interplay of curvature and vortices in flow on curved surfaces
  Incompressible fluids on curved surfaces are considered with respect to the interplay between topology, geometry and fluid properties using a surface vorticity-stream function formulation, which is solved using parametric finite elements. Motivated by designed examples for superfluids, we consider the influence of a geometric potential on vortices for fluids with finite viscosity and show numerical examples in which a change in the geometry is used to manipulate the flow field. 
Sebastian Reuther and Axel Voigt
physics.flu-dyn math-ph math.MP physics.comp-ph