A physical insight into electrospray process in cone-jet mode: Role of operating parameters

Dastourani H.; Jahannama M. R.; Eslami-Majd A.

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A physical insight into electrospray process in cone-jet mode: Role of operating parameters

机译：深入了解锥形喷射模式下电喷雾过程：操作参数的作用

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摘要

This article investigates the formation of cone-jet structure in an electrospray process based on a two-phase numerical simulation. The numerical approach takes account of the coupled governing equations of fluid flow and electrostatics in conjunction with the charge conservation equation and a VOF interface tracking method on the basis of a CSF model. The temporal and spatial evolutions of the cone-jet mode are examined in connection with the operating parameters, i.e. liquid flow rate and electric potential. Under the influence of these parameters, this study elucidates the physical aspects of the geometrical growth and extension along with the electric charge dispersion within the cone jet structure. Furthermore, the flow patterns developed in the two-phase flow are studied revealing how orderly the operating parameters can alter the flow configuration. The results are compared with experimental data indicating good agreements, which, in turn, confirm the effectiveness of the simulation methodology concerning the electrospray phenomenon.

机译：本文研究了基于两相数值模拟的电喷雾过程中锥形喷射结构的形成。数值方法考虑了流体流动和静电的耦合控制方程，结合电荷守恒方程和基于CSF模型的VOF界面跟踪方法。结合操作参数，即液体流速和电势，检查了锥喷射模式的时间和空间演变。在这些参数的影响下，这项研究阐明了几何增长和扩展的物理方面，以及在锥形射流结构内的电荷分散。此外，研究了两相流中形成的流型，揭示了运行参数如何有序地改变流型。将结果与表明良好一致性的实验数据进行比较，从而证实了有关电喷雾现象的模拟方法的有效性。

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来源
《International Journal of Heat and Fluid Flow》 |2018年第4期|315-335|共21页
作者
Dastourani H.; Jahannama M. R.; Eslami-Majd A.;
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作者单位

Aerosp Res Inst, Mahestan St,Sanat Sq, Tehran, Iran;

Iranian Space Res Ctr, Sprays Res Lab, Sheikh Fadhlullah Highway, Tehran, Iran;

Malek Ashtar Univ Technol, Elect & Elect Engn Dept, Tehran, Iran;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Cone-jet mode; Electrospray; Electric potential; Flow rate; Numerical simulation;

机译：锥喷射模式;电喷涂;电势;流量;数值模拟;

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A physical insight into electrospray process in cone-jet mode: Role of operating parameters

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