“…To modify the model, a microscopic observation was applied to the initial motion process of the droplet. , The influence of flow field parameters on the critical movement of the droplet has been studied, and some simplified models are established to predict the critical flow field velocity required for the initial motion of the droplet. In recent years, a large number of surfaces with special properties have attracted intensive attention, such as superhydrophobic surfaces, superoleophobic surfaces, and superhydrophobic–hydrophilic gradient surfaces, which play an important role in biomedical engineering, petrochemical industry, cleaning, agricultural production, and other fields. Many studies have shown that surface wettability affected the movement of oil droplets on the surfaces.…”