In the present study, the breakup process of drop in a symmetric T-junction microchannel is numerically investigated. A novel method base on imposing an electric field in the branches of the T-junction is proposed to improve the breakup process of the drop. The results are apprised by the previously published experimental and numerical research in the literature. The comparison depicts that the current results are in good agreement with the previous studies. The effects of the non-dimensional drop length (L*), electric capillary number (\({\text{Ca}}_{{\text{e}}}\)), and permittivity ratio (\(\varepsilon^{*}\)) are studied in detail. The results reveal that using an electric field, the mother drop splits faster in the presence of an electric field when compared with the case without the electric field. It is also concluded that the effect of electrical field is more highlighted when drops are smaller. Furthermore, the breakup time of the drop decreases by increasing the electric capillary number and permittivity ratio.

在本研究中，数值研究了对称T型结微通道中液滴的破裂过程。提出了一种在T型结的分支上施加电场的新方法，以改善液滴的破裂过程。该结果由文献中先前发表的实验和数值研究得出。比较表明，目前的结果与以前的研究非常吻合。无量纲液滴长度（L *），电毛细管数（\（{\ text {Ca}} _ {{\ text {e}}} \\））和介电常数比（\（\ varepsilon ^ {*} \））进行了详细研究。结果表明，与没有电场的情况相比，使用电场，在存在电场的情况下，母滴分裂更快。还得出结论，当液滴较小时，电场的影响会更加突出。此外，通过增加电毛细管数和介电常数，液滴的破裂时间减少。