Abstract
It is shown that placing a Kirchhoff vortex in a weak resonant strain having uniform, but oscillating strain rate with chirped oscillation frequency, allows adiabatic control of the axis ratio [Formula Presented] and rotation phase of the vortex. The phenomenon has a threshold on the amplitude of oscillations of the strain rate and is due to the persisting nonlinear phase locking (autoresonance) between the elliptic vortex and the adiabatically varying straining flow.
Original language | English |
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Pages (from-to) | 4106-4111 |
Number of pages | 6 |
Journal | Physical Review E |
Volume | 59 |
Issue number | 4 |
DOIs | |
State | Published - 1999 |