Gyroscopic instability of a drop trapped inside an inclined circular hydraulic jump.
Phys Rev Lett
; 105(8): 084503, 2010 Aug 20.
Article
em En
| MEDLINE
| ID: mdl-20868102
ABSTRACT
A drop of moderate size deposited inside a circular hydraulic jump remains trapped at the shock front and does not coalesce with the liquid flowing across the jump. For a small inclination of the plate on which the liquid is impacting, the drop does not always stay at the lowest position and oscillates around it with a sometimes large amplitude, and a frequency that slightly decreases with flow rate. We suggest that this striking behavior is linked to a gyroscopic instability in which the drop tries to keep constant its angular momentum while sliding along the jump.
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
França