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To grate a liquid into tiny droplets by its impact on a hydrophobic microgrid
Citation
Brunet, P and Lapierre, F and Zoueshtiagh, F and Thomy, V and Merlen, A, To grate a liquid into tiny droplets by its impact on a hydrophobic microgrid, Applied Physics Letters, 95 Article 254102. ISSN 0003-6951 (2009) [Refereed Article]
Copyright Statement
Copyright 2009 American Institute of Physics
Abstract
We report on experiments of drop impacting a hydrophobic microgrid of typical spacing a few tens
of micrometers. Above a threshold in impact speed, liquid emerges to the other side, forming
microdroplets of size about that of the grid holes. We propose a method to produce either a
monodisperse spray or a single tiny droplet of volume as small as a few picolitres corresponding to
a volume division of the liquid drop by a factor of up to 105. We also discuss the discrepancy of the
measured thresholds with that predicted by a balance between inertia and capillarity.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Engineering |
| Research Group: | Fluid mechanics and thermal engineering |
| Research Field: | Fluid mechanics and thermal engineering not elsewhere classified |
| Objective Division: | Manufacturing |
| Objective Group: | Instrumentation |
| Objective Field: | Scientific instruments |
| UTAS Author: | Lapierre, F (Dr Florian Lapierre) |
| ID Code: | 100003 |
| Year Published: | 2009 |
| Web of Science® Times Cited: | 30 |
| Deposited By: | Austn Centre for Research in Separation Science |
| Deposited On: | 2015-04-22 |
| Last Modified: | 2015-08-19 |
| Downloads: | 0 |
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