Amplitude of undulating fin in the vicinity of a wall: Influence of unsteady wall effect on marine propulsion

K Ren, J Yu - Ocean Engineering, 2022 - Elsevier
To investigate the role of the amplitude of an object under the unsteady wall effect in fluid
dynamics, we modelled an undulating fin near a wall in a two-dimensional Cartesian …

Flow-mediated interactions between two self-propelled flexible fins near sidewalls

Y Dal Jeong, JH Lee, SG Park - Journal of Fluid Mechanics, 2021 - cambridge.org
It has been reported that the follower in a tandem configuration with no wall (0W) reduces
the time-averaged input power by utilizing the vortex interception mode (Zhu et al., Phys …

Swimming near substrates: Stingray self-propelled undulatory simulations

G Su, N Li, H Shen, Y Su, Y Zhu, L Yu, W Liu - Ocean Engineering, 2022 - Elsevier
Fish movement investigations typically assume motion through unbound fluids. However,
benthic organisms experience ground effects when moving near substrates. To identify the …

Numerical analysis on the propulsive performance of oscillating wing in ground effect

Y Li, Z Pan, N Zhang - Applied Ocean Research, 2021 - Elsevier
The transient numerical simulation has been conducted by using of the Overlapping grid
technique to investigate the ground wall effect on the propulsive performance of an …

[HTML][HTML] Self-propulsive property of flexible foil undergoing traveling wavy motion: A numerical investigation

Y Li, Z Pan, X Wang - Journal of Marine Science and Engineering, 2024 - mdpi.com
The propulsive characteristics of self-propelling 3D flexible foil are numerically studied. Two
kinds of dynamic boundary techniques, namely the dynamic mesh technique and …

Wall effects in fishes-like undulating hydrofoils

S Dutta, R Lakkaraju, S Roy - Physics of Fluids, 2025 - pubs.aip.org
Researchers have been inspired to study the mechanics of aquatic animals to develop
advanced underwater vehicles and robots, as they demonstrate swimming abilities that are …

Self-propulsion characteristics of fish-like undulating foil–a numerical investigation

Y Li, Y Li, Z Pan - Ships and Offshore Structures, 2024 - Taylor & Francis
In this work, the propulsive characteristic of an auto-propelled 2 D NACA0015 foil
undergoing traveling wave motion is numerically investigated. The effects of typical motion …

Investigating the influence of fluid-structure interactions on nonlinear system identification

SNH Syuhri, H Zare-Behtash, A Cammarano - Vibration, 2020 - mdpi.com
A complex fluid-structure interaction can often create nonlinear dynamic behaviour in the
structure. This can be better estimated using nonlinear modal analysis, capable of …

Dynamic analysis of the sinusoidal actuation of a flexible fin for paired fin propulsion

Z Su, F Yu, B Zhu, W Han, Q Wang, W Li - Physics of Fluids, 2022 - pubs.aip.org
In this research, the sinusoidal actuation of a flexible fin for median and/or paired fin
propulsion is studied. A prototype of an underwater robot is built, and the computer-aided …

[HTML][HTML] 波动鳍极地两栖机器人近壁区鳍面运动仿真研究

黄鑫迪, 刘铁军, 阎述学 - 舰船科学技术, 2024 - html.rhhz.net
随着北极海冰消融, 北极的战略地位日益凸显, 而两栖机器人在极地极端环境中具有广阔的应用
前景. 本文提出一种波动鳍极地两栖机器人概念样机, 并建立波动鳍结构及运动学模型 …