Abstract
This study reports on the breaking up of droplets which can be manipulated with acoustic fields. The oscillation of vortex in a breaking droplet is observed. The droplet size is dependent on the flow-rate combination of the two fluids as well as the frequency and power of the acoustic actuation. Acoustic microstreaming flow is observed in the dispersed phase at the cross-junction of the device. The microstreaming flow causes a stratified vortex flow structure within the dispersed phase. Two stratified vortex centers at the side poles of the droplet are found.
| Original language | English |
|---|---|
| Article number | 133111 |
| Journal | Applied Physics Letters |
| Volume | 97 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 27 Sept 2010 |
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