Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(3)
Published: March 1, 2025
This experimental research investigates the turbulent flow dynamics in a narrow open channel with submerged finite uniform patches of flexible and rigid vegetation placed along sides at equal intervals. A Sontek FlowTracker 2.0 Acoustic Doppler Velocimeter was used to collect instantaneous velocity data evaluate essential attributes, including profiles, Reynolds shear stress, higher-order moments, bursting events. The findings indicate that maximum intensity turbulence occurs inflection point immediately above plant's canopy. Vegetation greatly affects structure, reducing zone increasing Compared upstream non-vegetation zone, depth-averaged increased by 24% canopy, diminished 19% below 12% downstream non-vegetated vegetation. For patches, 23% 25% 5% as compared zone. Quadrant analysis revealed occurrence sweeps ejections more nearer vegetated bed. Furthermore, arrangement placement were pivotal diminishing affecting momentum transfers between zones. These significantly modifies patterns, dispersing loads. enhances comprehension flow-vegetation natural channels, impacting riverbank stability ecological habitat management.
Language: Английский