Nonlinear dynamics of a flow-focusing bubble generator: an inverted dripping faucet.
We describe the rich dynamic behavior--including period-doubling and period-halving bifurcations, intermittency, and chaos--observed in the breakup of an inviscid fluid in a coflowing, viscous liquid, both confined in a microfabricated flow-focusing geometry. Experimental observations support inertia-dominated dynamics of the interface, and suggest the possible similarity to the dynamics of a topologically inverted counterpart of this system, that is, a dripping faucet.
Garstecki
Piotr
P
Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA. pgarstecki@gmwgroup.harvard.edu
Fuerstman
Michael J
MJ
Whitesides
George M
GM