Astable regime in electrosprays
Astable regime in electrosprays
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DOI：
10.1103/physreve.76.026320
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发表时间：
2007-08-01
影响因子：
2.4
通讯作者：
Vertes, Akos
中科院分区：
文献类型：
--
作者：
Marginean, Ioan;Nemes, Peter;Vertes, Akos
Astable regimes are common in nonlinear systems ranging from electrooptic devices to cardiac rhythms under environmental stress. Electrosprays exhibit three main axial regimes (dripping, pulsating, and cone-jet). It is generally accepted that the transition between the pulsating and cone- jet regimes is sudden, accompanied by an abruptly enhanced spray current. Here we present an alternative to this scenario, in which the electrospray follows a new chaotic astable path to the cone- jet regime. The astable regime could be explained as a result of transitions between a limit cycle (pulsating regime) and a fixed point (cone-jet regime) in a subcritical Andronov-Hopf bifurcation due to small external perturbations (noise). With the introduction of this regime, a broader view of the diverse axial regimes becomes possible based on nonlinear dynamics that enables their consistent classification.
