Experimental and simulation study of bio-inspired adaptive transverse wave microgrooves for underwater drag reduction
Shan Lu, Jianbo Liu, Hang Li, Liguo Qin, Zheng Wang, Yuhao Wu, Zeyu Ma, Hu Qiao
Abstract
Inspired by the flexible skin of dolphins and the hydrophobic effect of lotus leaves, this study developed an adaptive drag reduction surface using biomimetic structures. The design combines a transverse groove base with hydrophobic flexible materials, employing hydraulic actuation for active surface morphing. This approach effectively integrates non-smooth structures, flexible surfaces, and hydrophobic drag reduction technologies, achieving up to 28 % drag reduction at a flow velocity of 0.2 m/s. This adaptive technology offers a robust solution for drag reduction across varying flow velocities in complex underwater environments .
Topics & Concepts
DragReduction (mathematics)Transverse planeUnderwaterMarine engineeringMaterials sciencePhysicsAcousticsComputer scienceEngineeringMechanicsGeologyStructural engineeringMathematicsOceanographyGeometrySurface Modification and SuperhydrophobicityFluid Dynamics Simulations and InteractionsFluid Dynamics and Heat Transfer