Results 131 to 140 of about 2,252 (180)
Some of the next articles are maybe not open access.
Hydroelastic Responses of a Flexible Hydrofoil in Turbulent, Cavitating Flow
ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B, 2010The objective of this work is to develop and validate a robust method to simulate the hydroelastic responses of flexible hydrofoil in turbulent, cavitating flow. A two degrees-of-freedom (2-DOF) model is used to simulate the plunging and pitching motion at the foil tip due to bending and twisting deformation of a 3-D cantilevered hydrofoil.
Antoine Ducoin +2 more
openaire +1 more source
Steady Performance of a Flexible Hydrofoil Near a Free Surface
Journal of Ship Research, 1990A linearized cavity-flow theory is used to develop a mathematical model to study the steady characteristics of a flexible hydrofoil near a free surface. The Galerkin method is employed to account for the mutual interaction between the fluid and structure forces.
Salwa M. Rashad, Theodore Green
openaire +1 more source
Computational Fluid Dynamics Study of a Flexible Flapping Hydrofoil Propulsor
Volume 2: CFD and VIV, 2016A CFD study to understand the hydrodynamics and fluid flow around a chordwise flexible hydrofoil with combined sway and yaw motion which imitates the caudal fin flapping in thunniforms, is presented. The dependency of motion parameters of the flexible flapping hydrofoil to its propulsive performance is studied by carrying out the analyses over a ...
Harikrishnan Vijayakumaran +1 more
openaire +1 more source
The transient characteristics of cloud cavitating flow over a flexible hydrofoil
International Journal of Multiphase Flow, 2018Abstract The objective of this paper is to investigate the two-phase flow structure of cloud cavitation over a flexible hydrofoil with particular emphasis on cavitating flow-induced vibration and the cavity shedding dynamics via combined experimental and numerical studies.
Qin Wu +3 more
openaire +1 more source
Bending Flutter and Torsional Flutter of Flexible Hydrofoil Struts
1973A large body of experimental and theoretical flutter results for hydrofoil struts were analyzed to determine significant characteristics. Flutter was found to occur in two different structural mode shapes, corresponding to a predominantly bending mode and a predominantly torsional mode, respectively.
Yuan-Ning Liu, Peter K. Besch
openaire +1 more source
Numerical research on hydrodynamic characteristics of fish-like flexible oscillating hydrofoil
2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS), 2018Hydrofoil is a common structure of underwater machinery and has good hydrodynamic performance. At present, most of the studies on oscillating hydrofoils are on rigid hydrofoils, but few on hydrodynamics of flexible oscillating hydrofoils. In this paper, the kinetic model of flexible hydrofoil is established by imitating tuna swimming.
Zhitong Li +4 more
openaire +1 more source
A Study on Fluid-Structure Interaction Performance of a Flexible Hydrofoil
Volume 2: CFD and FSI, 2018To research the flexible hydrofoils’ hydroelastic response, the fluid-structure interaction (FSI) characteristic investigation is conducted on the basis of the analysis of a rigid hydrofoil’s hydrodynamic performance. For a rigid cantilevered rectangular hydrofoil, the pitching hydrodynamic performance is calculated using boundary motion with remeshing
Zheng Huang +3 more
openaire +1 more source
Experimental study of the steady fluid–structure interaction of flexible hydrofoils
Journal of Fluids and Structures, 2014Abstract This paper presents results from an experimental study of the hydrodynamic and hydroelastic performance of six different flexible hydrofoils of similar geometry; four metal hydrofoils of stainless steel (SS) and aluminum (AL), and two composite hydrofoils of carbon-fiber reinforced plastic (CFRP). The two CFRP hydrofoils had differing layups,
Gustavo A. Zarruk +3 more
openaire +1 more source
The effect of twist on flexible hydrofoils
2010Flexible low aspect ratio hydrofoils were tested to investigate the effect of twist on the lift and drag characteristics and in particular, the high induced drag force. Flexible models with stiffeners at various positions and rigid models with a set twist were tested in a water flume and the lift and drag forces were measured over a range of angles of ...
openaire +1 more source
Numerical and experimental investigation of natural flow-induced vibrations of flexible hydrofoils
Physics of Fluids, 2016The objective of this work is to present combined numerical and experimental studies of natural flow-induced vibrations of flexible hydrofoils. The focus is on identifying the dependence of the foil’s vibration frequencies and damping characteristics on the inflow velocity, angle of attack, and solid-to-fluid added mass ratio.
Eun Jung Chae +4 more
openaire +1 more source