The purpose of this article is to explore the role of viscoelastic properties of polymeric solutions on the jet mode in the electrospray process. In this research, several numerical simulations were performed to model the behavior of electrified Newtonian and viscoelastic jets. First, used for validating viscoelastic constitutive equations and their implementation, the benchmark problem of the sedimenting sphere is stabilized beyond the previously suggested threshold. Then, an electrified DI water jet was simulated, and the obtained jet profile was compared with the experimental data from previous publications. Finally, the proposed algorithm was used to simulate viscoelastic electrified jets, where the effect of the Weissenberg number (Wi) on the jet profile was examined. In agreement with the previously obtained experimental results, by increasing the solution concentration, the asymptotic profile of the jet is reached at a smaller length from the nozzle, while the final thickness of the jet is slightly reduced.

中文翻译：

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牛顿流体和粘弹性流体电喷雾喷射模式的数值模拟

本文的目的是探讨聚合物溶液的粘弹性对电喷雾过程中喷射模式的作用。在这项研究中，进行了多次数值模拟来模拟带电牛顿和粘弹性射流的行为。首先，用于验证粘弹性本构方程及其实现，沉降球的基准问题稳定在先前建议的阈值之外。然后，模拟带电去离子水射流，并将获得的射流剖面与先前出版物的实验数据进行比较。最后，所提出的算法用于模拟粘弹性带电射流，其中检查了魏森伯格数 (Wi) 对射流剖面的影响。与先前获得的实验结果一致，