Abstract (EN):
The objective of this study is to control the motion of a passive particle advected by N point vortices in a sphere. The square of the L-2 norm of control, necessary for the system to evolve from a starting point to an end point in an a priori fixed time, must be minimized. If the motion is generated by a single vortex (N = 1), we show that the system is controllable. The problem is also solved by a direct approach, where the control problem is transformed into a nonlinear optimization problem that is solved numerically. In the case of one (N = 1), two (N = 2), or three (N = 3) point vortices, the numerical results show the existence of near/quasi-optimal control.
Language:
English
Type (Professor's evaluation):
Scientific
No. of pages:
12