Numerical-Experimental Study on the Influence of the Biomimetic Spine-Covered Protrusions (BSCPs) Structure on the Base Pressure and Near-Wake Flow of Underwater Vehicles

Tian, Guizhong; Jin, Shi; Hu, Yushen; Zhou, Honggen; Feng, Xiaoming

doi:10.1007/s13369-021-06490-x

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…Research by Shi et al [159] and Tian et al [160] explored the impact of pufferfish spine-inspired structures (as shown in Figure 12) on small AUV hulls, attaining up to a 10.6% reduction in resistance. Extending this concept, Feng's team [161] ingeniously created a drag-reducing surface on a copper substrate, incorporating cone-shaped protrusions and an elastic layer, inspired by both the spines and skin of pufferfish, achieving significant drag reduction as well as enhanced adhesion and stability.…”

Section: Applications Of Biomimetic Drag Reductionmentioning

confidence: 99%

Review of Computational Fluid Dynamics Analysis in Biomimetic Applications for Underwater Vehicles

Zhang,

Wang,

Zhang

2024

Biomimetics

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Biomimetics, which draws inspiration from nature, has emerged as a key approach in the development of underwater vehicles. The integration of this approach with computational fluid dynamics (CFD) has further propelled research in this field. CFD, as an effective tool for dynamic analysis, contributes significantly to understanding and resolving complex fluid dynamic problems in underwater vehicles. Biomimetics seeks to harness innovative inspiration from the biological world. Through the imitation of the structure, behavior, and functions of organisms, biomimetics enables the creation of efficient and unique designs. These designs are aimed at enhancing the speed, reliability, and maneuverability of underwater vehicles, as well as reducing drag and noise. CFD technology, which is capable of precisely predicting and simulating fluid flow behaviors, plays a crucial role in optimizing the structural design of underwater vehicles, thereby significantly enhancing their hydrodynamic and kinematic performances. Combining biomimetics and CFD technology introduces a novel approach to underwater vehicle design and unveils broad prospects for research in natural science and engineering applications. Consequently, this paper aims to review the application of CFD technology in the biomimicry of underwater vehicles, with a primary focus on biomimetic propulsion, biomimetic drag reduction, and biomimetic noise reduction. Additionally, it explores the challenges faced in this field and anticipates future advancements.

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Section: Applications Of Biomimetic Drag Reductionmentioning

confidence: 99%

Review of Computational Fluid Dynamics Analysis in Biomimetic Applications for Underwater Vehicles

Zhang,

Wang,

Zhang

2024

Biomimetics

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“…The research exploring the influence of microstructures on drag reduction across an entire submarine structure is still scant [25]. Tian et al explored the drag reduction properties of the suboff model by positioning bionic micro-structures with different heights, positions, and arrangements on the underwater vehicle [26,27]. Flow behaviors and drag attributes analysis was conducted on the impact of varying riblet shapes on submarine surfaces by Mai et al There was a significant reduction in wall shear stress and turbulence kinetic energy on the submarine surface resulting in diminished frictional drag [28].…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation into turbulent drag reduction via the application of pufferfish spine-inspired cone microstructures in Suboff models

Zhao,

Zhu,

Feng

et al. 2024

Phys. Scr.

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The effective reduction of seawater drag is pivotal in enhancing the speed and minimizing the energy consumption of submarines, which has significant implications in the fields of energy and defense. Surface bionics has emerged as one of the leading techniques for drag reduction. Current research primarily focuses on replicating the groove-like structures observed on shark skins and the flexible properties of dolphin skins. However, the application of cone microstructures on submarine surfaces remains relatively underexplored. In this study, a novel arrangement of bionic drag-reducing microstructures is employed to modify the turbulence structure surrounding the submarine by incorporating bionic cone microstructures at both the front and rear ends of the submarine. Numerical simulations were performed using the SST k-ω turbulence model to evaluate the impact of these frontal microstructures on drag reduction under varying Reynolds numbers, spacings, and positions, as well as the tail microstructures' effect at different Reynolds numbers, heights, and circumferential separation angles. The findings reveal that positioning microstructures at the submarine's head increases the drag reduction rate proportionally with the distance from the apex, displaying an inverse relationship between spacing and drag reduction rate. Conversely, an increase in cone separation angle at the tail leads to a decrease in the overall drag reduction rate. At the same time, an inverse proportionality is observed between cone height and drag reduction rate. This suggests that cone microstructures play a dual role: mitigating friction drag greatly and augmenting pressure drag, thereby achieving overall drag reduction. Moreover, these cone microstructures disrupt eddy currents within the boundary layer surrounding the submarine, restraining the propagation of turbulent momentum transfer in both the head and tail regions. This research not only pioneers a novel drag reduction strategy for underwater vehicles but also sparks new avenues for their optimized surface design.

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Numerical study of hydrodynamic drag effects of streamwise riblet structures on SUBOFF bare hull model

Kim,

Chang,

Lee

et al. 2024

Ocean Engineering

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Numerical-Experimental Study on the Influence of the Biomimetic Spine-Covered Protrusions (BSCPs) Structure on the Base Pressure and Near-Wake Flow of Underwater Vehicles

Cited by 3 publications

References 38 publications

Review of Computational Fluid Dynamics Analysis in Biomimetic Applications for Underwater Vehicles

Review of Computational Fluid Dynamics Analysis in Biomimetic Applications for Underwater Vehicles

Numerical investigation into turbulent drag reduction via the application of pufferfish spine-inspired cone microstructures in Suboff models

Numerical study of hydrodynamic drag effects of streamwise riblet structures on SUBOFF bare hull model

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