To grate a liquid into tiny droplets by ...
Type de document :
Article dans une revue scientifique
DOI :
Titre :
To grate a liquid into tiny droplets by its impact on a hydrophobic microgrid
Auteur(s) :
Brunet, P. [Auteur]
Lapierre, F. [Auteur]
Zoueshtiagh, Farzam [Auteur]
Thomy, Vincent [Auteur]
Merlen, Alain [Auteur]
Lapierre, F. [Auteur]
Zoueshtiagh, Farzam [Auteur]
Thomy, Vincent [Auteur]
Merlen, Alain [Auteur]
Titre de la revue :
Applied Physics Letters
Pagination :
254102
Éditeur :
American Institute of Physics
Date de publication :
2009
ISSN :
0003-6951
Discipline(s) HAL :
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
Résumé en anglais : [en]
We report on experiments of drop impacting a hydrophobic micro-grid, of typical spacing a few tens of µm. Above a threshold in impact speed, liquid emerges to the other side, forming microdroplets of size about that of the ...
Lire la suite >We report on experiments of drop impacting a hydrophobic micro-grid, of typical spacing a few tens of µm. 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 mono-disperse spray or a single tiny droplet of volume as small as a few picoliters 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 capillarityLire moins >
Lire la suite >We report on experiments of drop impacting a hydrophobic micro-grid, of typical spacing a few tens of µm. 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 mono-disperse spray or a single tiny droplet of volume as small as a few picoliters 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 capillarityLire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Non spécifiée
Vulgarisation :
Non
Source :
Fichiers
- http://arxiv.org/pdf/0912.0035
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- https://hal.archives-ouvertes.fr/hal-00469669/document
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