Critical condition for the transformation from Taylor cone to cone-jet

doi:10.1088/1674-1056/23/6/064702

Abstract An energy method is proposed to investigate the critical transformation condition from a Taylor cone to a cone-jet. Based on the kinetic theorem, the system power allocation and the electrohydrodynamics stability are discussed. The numerical results indicate that the energy of the liquid cone tip experiences a maximum value during the transformation. With the proposed jetting energy, we give the critical transformation condition under which the derivative of jetting energy with respect to the surface area is greater than or equal to the energy required to form a unit of new liquid surface.

Keywords: Taylor cone cone-jet electrohydrodynamics numerical computation

Received: 23 July 2013
Revised: 02 December 2013
Accepted manuscript online:

PACS:	47.20.Dr	(Surface-tension-driven instability)
	47.55.db	(Drop and bubble formation)
	47.55.nb	(Capillary and thermocapillary flows)
	47.65.-d	(Magnetohydrodynamics and electrohydrodynamics)

Fund: Project supported by the National Basic Research Program of China (Grant No. 2013CB733004).

Corresponding Authors: Gang Tie-Qiang, Chen Li-Jie
E-mail: gangtq@xmu.edu.cn;chenlijie@xmu.edu.cn

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Wei Cheng (魏承), Gang Tie-Qiang (冮铁强), Chen Li-Jie (陈立杰), Zhao Yang (赵阳) Critical condition for the transformation from Taylor cone to cone-jet 2014 Chin. Phys. B 23 064702

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