The Coulomb instability of charged microdroplets:: dynamics and scaling

被引:55
作者
Achtzehn, T [1 ]
Müller, R [1 ]
Duft, D [1 ]
Leisner, T [1 ]
机构
[1] Tech Univ Ilmenau, Inst Phys, D-98684 Ilmenau, Germany
关键词
D O I
10.1140/epjd/e2005-00102-1
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The stability and disintegration dynamics of evaporating highly charged liquid droplets from ethylene glycol and glycerol is investigated by ultrafast microscopy and analyzed as a function of temperature and droplet size. In the moment of instability the droplets have deformed to elongated spindle like shapes from which pairs of opposite jets of highly charged liquid are emitted. The thickness of the jets and the shape of the deformed droplet are remarkably insensitive to the size and viscosity of the unstable droplet, while the speed of disintegration is found to scale with a power law for both variables, the exponent being close to 3/2.
引用
收藏
页码:311 / 313
页数:3
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