Abstract Summary/Description
High-speed liquid jets, often observed during processes like droplet impact, exhibit intricate morphologies governed by initial conditions, fluid properties, and system geometry. Understanding these jets is crucial for applications such as inkjet printing, pesticide spraying, fuel combustion, and air-sea gas exchange, where their dynamics can be either advantageous or detrimental. Despite their importance, predicting jet behavior, particularly thickness, velocity, and stability, remains a challenge due to the interplay of momentum transfer and energy dissipation. This research employs three-dimensional numerical simulations to replicate and analyze the diverse morphologies observed experimentally in a simplified setup. The system consists of two plates rapidly pushed together to expel fluid, eliminating the complexities associated with droplet impacts. Experimental validation using high-speed imaging shows promising agreement with initial simulations, laying the foundation for a detailed parametric study. The focus will be on exploring the size, velocity, and vorticity of the jets near their base, addressing the fundamental question: “What determines jet thickness?” Additionally, the study aims to uncover new morphologies by varying parameters such as the gap width and fluid properties, extending our understanding of jet formation and stability. These findings will provide valuable insights into splash dynamics, aiding the development of predictive models for controlling such phenomena across engineering and industrial applications.
