PDE seminar: Topological instability of laminar flows for the twodimensional NavierStokes equation in adiffuser shroud
 Date

2013422 16:30 
2013422 17:30
 Place
 Faculty of Science Building #3, Room 309

Speaker/Organizer
 Tsuyoshi Yoneda (Hokkaido University)

 In general, before separating from a boundary, the
flow moves toward reverse direction near the boundary
against the laminar flow direction. Here in this talk,
creation of the reverse flow phenomena (in a mathematical
sense) in a diffuser shroud is observed.
More precisely, in the nonstationary twodimensional
NavierStokes equation with diffusing laminar initial
data (we define it rigorously in this talk), topologically
changing flow, namely, instability is observed.