Abstract This study aimed to regulate the stability of electrohydrodynamic cone-jet morphology by modifying the needle structure and conical point electrode by drawing upon high AC voltage and low flow velocity values. Accordingly, stability is achieved by the electrohydrodynamic jet (E-Jet) printing, considered an effective tool in micro and nanofabrication for flexible electronic systems. In the present study, 2-phase-field method was employed to draw a comparison of the volume of fraction method to optimize parameters for stable cone-jet on a PET substrate surface by exploiting a range of copper control electrodes. With COMSOL Multiphysics software, the equations of electric potential and electrical body forces were successfully solved. The validation study was compared with ensure the optimization parameters of cone-jet morphology, as retained in the boundaries of leaky dielectric model. Moreover, the simulation parameters were directly adopted to print continuous line patterns on the PET substrate, which are considered prominent and promising E-Jet printing methods for flexible electronic systems.

中文翻译：

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柔性基板上稳定电流体动力锥射流形成和印刷的数值模拟

摘要 本研究旨在通过利用高交流电压和低流速值修改针状结构和锥形点电极来调节电流体动力锥形射流形态的稳定性。因此，稳定性是通过电流体动力喷射 (E-Jet) 打印实现的，被认为是柔性电子系统微纳制造中的有效工具。在本研究中，采用 2 相场法比较了体积分数法，以通过利用一系列铜控制电极来优化 PET 基板表面上稳定锥形射流的参数。借助 COMSOL Multiphysics 软件，成功求解了电势方程和电体力方程。验证研究与确保锥形射流形态的优化参数进行了比较，保留在泄漏电介质模型的边界中。此外，直接采用模拟参数在 PET 基板上打印连续线条图案，这被认为是用于柔性电子系统的突出和有前途的 E-Jet 打印方法。