Open water characteristics of marine propeller with superhydrophobic surfaces

Chen, Lie; Wang, Shun; Ding, Jiangming; Wang, Yutao; Bennett, Peter; Cheng, Jun; Yang, Qibiao; Liu, Dun

doi:10.1016/j.oceaneng.2022.113440

Cited by 10 publications

(3 citation statements)

References 55 publications

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“…[29] ALEX 9.9 × 10 4 -4.9 × 10 5 [30] Researchers and engineers utilize the model to validate CFD codes, reinforcing the reliability of CFD [31][32][33]. Additionally, the application of CFD in validating factors like propeller thrust [34][35][36] and hydrodynamic noise [37][38][39] further affirms its dependability and efficiency.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

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

Zhang,

Wang,

Zhang

2024

Biomimetics

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“…Titanium alloys are highly favored in aerospace, medical and marine sectors [1]. It has excellent qualities, such as sufficient strength and hardness at high temperatures, corrosion resistance and low density [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on fiber laser micro drilling of Titanium grade 5: fabrication, nature-inspired optimization and analysis through image processing

Kar,

Goswami

2024

Eng. Res. Express

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This investigation showed that micro holes were created on Titanium grade 5 substrate surface using a 30 W fiber laser. The impact of the control factors such as scan speed, frequency, number of passes and power were studied on the responses namely heat affected zone (HAZ), hole circularity (HC) and deviation in diameter (DIV). The control factors were optimized using firefly algorithm. Mathematical models were developed for each response having significant R-square value. 3D surface plots were used to examine how the control parameters affected the response. The firefly algorithm identifies the optimal conditions for micro drilling as scan speed of 210 mm/s, frequency of 40 kHz, power of 8 W and total of 40 passes which improved experimental findings i.e. HC-0.974, DIV-37.02 µm and HAZ-19.53. After comparing the predicted values with the experimental findings, it was observed that the prediction error is lowest for HC (1.23 %) followed by DIV (13.9 %) and HAZ (16.9 %). Image processing technique was used to convert regular images into a digital format to extract useful information.

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“…A spiky coating has a remarkable (and, perhaps, counterintuitive) property of drag (shear stress) reduction of the viscous flow compared to a flat surface, although in the former case, the contact area between the fluid and solid is much higher [8][9][10]. This property has made spiky coatings an attractive candidate for many practical applications (e.g., drag reduction of ships and drones [11], improvement of propeller performance [12], micro-pump design [1,13]) and stimulated many experimental and theoretical studies [14][15][16][17][18][19][20][21][22][23][24][25]. This is an active area of research with extensive literature, see [8,9,[26][27][28][29][30][31], and references therein.…”

mentioning

confidence: 99%

Slip length for a viscous flow over spiky surfaces

Skvortsov,

Grebenkov,

Chan

et al. 2023

EPL

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For a model of a 3D coating composed of a bi-periodic system of parallel riblets with gaps we analytically derive an approximate formula for the effective slip length (an offset from the flat surface at which the flow velocity would extrapolate to zero) as a function of the geometry of the system (riblet period, riblet height, and relative gap size). This formula is valid for an arbitrary fraction of gaps (i.e., from narrow riblets to narrow gaps) and agrees with the known analytical results for the 2D periodic coating of riblets without gaps. We validate our analytical results with the numerical solution of the equations of the viscous (creeping) flow over the riblets with gaps.

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Open water characteristics of marine propeller with superhydrophobic surfaces

Cited by 10 publications

References 55 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

Experimental investigation on fiber laser micro drilling of Titanium grade 5: fabrication, nature-inspired optimization and analysis through image processing

Slip length for a viscous flow over spiky surfaces

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