We investigate the hydraulic principles of plants with unique water transport and purification systems, such as densely branched vascular plants and aquatic plants. By analyzing xylem structures and wettability asymmetry, we explore nature’s strategies for efficient fluid control. Xylem-inspired unit cell structures, mimicking the hierarchical water transport pathways of plants, are designed through flow visualization; in parallel, photocatalytic water purification systems with enhanced floating stability are developed based on the structural features of floating plants. These bio-inspired microfluidic platforms offer a sustainable approach to fluid management and high-efficiency contaminant removal.
We focus on the dynamic characteristics of unstable jets by operating conditions and modifying nozzle geometry, particularly focusing on microbubble-containing jets. The inclusion of microbubbles significantly alters jet dynamics, enhancing mixing efficiency and inducing unique breakup behaviors. Flow visualization techniques, including Particle Image Velocimetry (PIV), are employed to analyze the dynamic behavior of these jets, such as instability patterns and flow evolution. The insights gained support the evaluation of their potential in targeted applications such as precision cleaning and multiphase transport systems.
We investigate flow behavior in diverse microfluidic systems, including microchannels and microporous structures, by analyzing interfacial fluid interactions. Through this approach, we fabricate functional microcompartments such as photocatalytic microparticles for pollutant degradation and microfibers capable of directional water harvesting. The dynamic water uptake and transport mechanisms in hydrogel-based porous networks are visualized to understand capillary-driven flow and water retention behavior. These insights, supported by combined experimental and theoretical analysis, enable practical solutions for environmental challenges and the design of eco-friendly water treatment systems for real-world applications.
We seek to elucidate the underlying mechanisms of fluid transport by employing experimental observation and theoretical modeling to analyze fluid dynamics in a variety of materials, including those exhibiting porous architectures and stimuli-responsive surface properties
