Dynamical Systems and Nonlinear Control Theory
Noack, B, Mezić, Igor, Tadmor, G and Banaszuk, Andrzej (2004), "Optimal mixing in recirculation zones", Physics of Fluids.
Coarse-scale mixing in a recirculation zone is described with a simple vortex model. Time-dependent forcing is employed to change the vortex motion and mixing properties. An optimal mixing problem is defined in which the flux across