Results 11 to 20 of about 1,002,742 (159)

Numerical investigation of cavity dynamics and cavitation-induced vibrations of a flexible hydrofoil [PDF]

International Journal of Fluid Engineering
This work investigates the cavitation and fluid–structure interaction characteristics of a flexible NACA0015 hydrofoil. The simulation incorporates the Zwart–Gerber–Belamri cavitation model and two-way fluid–structure interactions.
Bin Xu, Liwen Zhang, Xingyu Liu, Weibin Zhang, Hao Wang, Xi Shen, Desheng Zhang, B. P. M. (Bart) van Esch   +7 more
doaj   +4 more sources

Hydrodynamic Efficiency Analysis of a Flexible Hydrofoil Oscillating in a Moderate Reynolds Number Fluid Flow

Energies, 2021
The paper focuses on the study of a semi-activated system, based on a combination of two movements of forced pitching and free-heaving motion. Therefore, quantifying with accuracy the hydrodynamic forces applied on the hydrofoil seems to be crucial. This
Paul Brousseau, Mustapha Benaouicha, Sylvain Guillou   +2 more
doaj   +2 more sources

Control of a flexible, surface-piercing hydrofoil for high-speed, small-scale applications [PDF]

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2017
In recent years, hydrofoils have become ubiquitous and critical components of high-performance surface vehicles. Twenty-meter-long hydrofoil sailing craft are capable of reaching speeds in excess of 45 knots. Hydrofoil dinghies routinely travel faster than the wind and reach speeds up to 30 knots.
Bousquet, Gabriel David Elie Sylvain, Triantafyllou, Michael S, Slotine, Jean-Jacques E   +2 more
openaire   +5 more sources

Numerical Analysis of Hydrodynamics for Bionic Oscillating Hydrofoil Based on Panel Method [PDF]

Applied Bionics and Biomechanics, 2016
The kinematics model based on the Slender-Body theory is proposed from the bionic movement of real fish. The Panel method is applied to the hydrodynamic performance analysis innovatively, with the Gauss-Seidel method to solve the Navier-Stokes equations ...
Gang Xue, Yanjun Liu, Muqun Zhang, Hongpeng Ding   +3 more
doaj   +2 more sources

Fluid–Structure Interaction Simulation of Vortex-Induced Vibration of a Flexible Hydrofoil [PDF]

Journal of Vibration and Acoustics, 2017
Fluid–structure interaction (FSI) is investigated in this study for vortex-induced vibration (VIV) of a flexible, backward skewed hydrofoil. An in-house finite element structural solver finite element analysis nonlinear (FEANL) is tightly coupled with the open-source computational fluid dynamics (CFD) library openfoam to simulate the interaction of a ...
Abe H. Lee, Robert L. Campbell, Brent A. Craven, Stephen A. Hambric   +3 more
openaire   +2 more sources

Bidirectional Fluid–Structure Interaction Study on Hydrofoil Hardness and Oscillation Mode Optimization

Applied Sciences
This paper investigated the optimization of the hardness and oscillation mode of flexible hydrofoils using bidirectional fluid–structure interaction (FSI) to address the issue of insufficient guidance in engineering applications.
Ertian Hua, Mingwang Xiang, Qizong Sun, Tao Wang, Yabo Song, Caiju Lu   +5 more
doaj   +2 more sources

Systematic micro heat sink optimization based on hydrofoil shape pin fins

Case Studies in Thermal Engineering, 2021
Multi-objective optimization of the hydrofoil shaped pin fins for micro heat sinks was studied. Optimization tool utilized a multi objective genetic algorithm (MOGA) and a numerical model that was validated against previously obtained experimental single-
Fuad Ismayilov, Ali Akturk, Yoav Peles
doaj   +1 more source

Skeletons of swiftly swimming sharks: Three-dimensional analysis of lamniform vertebral morphology and mineral architecture. [PDF]

J Anat
We examined morphology, 3D arrangement, and mineral amount in cartilaginous vertebrae from four lamniform shark families (Alopiidae, Carchariidae, Cetorhinidae, and Lamnidae). We identified family‐specific mineralization trends, and regional patterning of structures along the column.
Knaub JL, Biordi M, Pawlik E, Passerotti M, Natanson LJ, Meredith T, Porter M.   +6 more
europepmc   +2 more sources

Numerical Analysis of the Effect of Flexibility on the Propulsive Performance of a Heaving Hydrofoil Undergoing Sinusoidal and Non-Sinusoidal Motions

Polish Maritime Research, 2022
Numerical simulations of fluid-structure interaction (FSI) on an elastic foil heaving with constant amplitude in freestream flow are carried out at a low Reynolds number of 20,000. The commercial software STAR-CCM+ is employed to solve the flow field and
Li Fengkun, Yu Pengyao, Wang Qiang, Li Guangzhao, Wu Xiangcheng   +4 more
doaj   +1 more source

An experimental analysis of fluid structure interaction on a flexible hydrofoil in various flow regimes including cavitating flow [PDF]

, 2012
The authors gratefully acknowledge the technical staff of IRENav for its contribution to the experimental set up.The structural response of a rectangular cantilevered flexible hydrofoil submitted to various flow regimes is analyzed through an original ...
SIGRIST, Jean-François, DUCOIN, Antoine, ASTOLFI, Jacques Andre   +2 more
core   +1 more source