Dripping, jetting and tip streaming have been studied up to a certain point separately by both fluid mechanics and microfluidics communities, the former focusing on fundamental aspects while the latter on applications. Here, we intend to review this field from a global perspective by considering and linking the two sides of the problem. First, we present the theoretical model used to study interfacial flows arising in droplet-based microfluidics, paying attention to three elements commonly present in applications: viscoelasticity, electric fields and surfactants. We review both classical and current results of the stability of jets affected by these elements. Mechanisms leading to the breakup of jets to produce drops are reviewed as well, including some recent advances in this field. We also consider the relatively scarce theoretical studies on the emergence and stability of tip streaming in open systems. Second, we focus on axisymmetric microfluidic configurations which can operate on the dripping and jetting modes either in a direct (standard) way or via tip streaming. We present the dimensionless parameters characterizing these configurations, the scaling laws which allow predicting the size of the resulting droplets and bubbles, as well as those delimiting the parameter windows where tip streaming can be found. Special attention is paid to electrospray and flow focusing, two of the techniques more frequently used in continuous drop production microfluidics. We aim to connect experimental observations described in this section of topics with fundamental and general aspects described in the first part of the review. This work closes with some prospects at both fundamental and practical levels.

流体力学和微流体学界分别对滴注、喷射和尖端流进行了一定程度的研究，前者侧重于基础方面，而后者侧重于应用。在这里，我们打算通过考虑和链接问题的两个方面，从全球的角度来回顾这个领域。首先，我们提出了用于研究基于液滴的微流体中产生的界面流动的理论模型，关注应用中常见的三个要素：粘弹性、电场和表面活性剂。我们回顾了受这些元素影响的射流稳定性的经典和当前结果。还审查了导致射流分裂以产生液滴的机制，包括该领域的一些最新进展。我们还考虑了关于开放系统中提示流的出现和稳定性的相对稀缺的理论研究。其次，我们专注于轴对称微流体配置，它可以以直接（标准）方式或通过尖端流在滴注和喷射模式下运行。我们展示了表征这些配置的无量纲参数，允许预测所得液滴和气泡大小的缩放定律，以及那些界定可以找到尖端流的参数窗口的参数。特别注意电喷雾和流动聚焦，这是连续液滴生产微流体中更常用的两种技术。我们的目标是将本节主题中描述的实验观察与评论第一部分中描述的基本和一般方面联系起来。