Results 11 to 20 of about 16,672 (254)
Numerical investigation of cavity dynamics and cavitation-induced vibrations of a flexible hydrofoil [PDF]
International Journal of Fluid EngineeringThis 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 +7 more
doaj +2 more sources
Journal of Marine Science and Engineering, 2022 The S-shaped hydrofoil is often used in the design of reversible machinery due to its centrally symmetrical camber line. The objective of this paper is to study the influence of cloud cavitation on the flow structure and the unsteady characteristics of ...
Haiyu Liu +3 more
doaj +2 more sources
Partial cavity shedding on a hydrofoil resulting from re-entrant flow and bubbly shock waves
Journal of Fluid Mechanics, 2023 Partial cavity flows forming on a NACA0015 hydrofoil are visualized using high-speed cinematography and time-resolved X-ray densitometry. These observations reveal the underlying flow features that lead to the cloud cavity shedding. Previous studies have
Anubhav Bhatt, Harish Ganesh, S. Ceccio
semanticscholar +1 more source
The Physics of Fluids, 2023 In this research, the cavitating flow around a NACA0015(National Advisory Committee for Aeronautics) hydrofoil obtained by the large eddy simulation method is analyzed using the proper orthogonal decomposition (POD) theory. Various fundamental mechanisms
A. Yu +4 more
semanticscholar +1 more source
Cavitation flow and noise reduction design of bionic hydrofoil based on orthogonal optimization
The Physics of Fluids, 2023 Hydrofoils hold considerable academic and practical significance in the realms of marine science, energy generation, and water-based engineering. They offer enhanced speed, efficiency, stability, and maneuverability.
Jinsong Zhang +4 more
semanticscholar +1 more source
THE EFFECT OF A TEXTURED SURFACE ON THE OCCURRENCE AND DEVELOPMENT OF CAVITATION ON THE HYDROFOIL
The Physics of Fluids, 2023 An experimental study of the cavitation flow around the NACA 0012 hydrofoil (National Advisory Committee for Aeronautics - NACA) with different surface morphology was carried out in this work.
S. Skripkin +4 more
semanticscholar +1 more source
Acoustic far field of a propeller working in the wake of a hydrofoil
The Physics of Fluids, 2023 The Ffowcs-Williams & Hawkings (FWH) acoustic analogy is adopted to reconstruct the acoustic far field of a system consisting of an upstream hydrofoil and a downstream propeller, considering the former at incidence angles of 0°, 10°, and 20°.
A. Posa, M. Felli, R. Broglia
semanticscholar +1 more source
Numerical Simulation on Vortex Shedding from a Hydrofoil in Steady Flow
Journal of Marine Science and Engineering, 2020 This paper presents a numerical modeling procedure for the idealization of vortex shedding effects in the wake flow field of a NACA0009 hydrofoil. During the simulation, the lift and drag acting on the hydrofoil were monitored, and the vortex-shedding ...
Jian Hu +5 more
doaj +1 more source
An experimental study of boundary-layer transition induced vibrations on a hydrofoil [PDF]
, 2012 This paper aims at characterizing experimentally laminar to turbulent transition induced vibrations. Here, the transition is known to be triggered by a Laminar Separation Bubble that results from a laminar separation of the boundary-layer flow on a ...
ASTOLFI, Jacques Andre +2 more
core +6 more sources
Hydrofoils and Hydrofoil Craft [PDF]
Annual Review of Fluid Mechanics, 1973 At the present time several hundred hydrofoilcraft are in service throughout the world. The upsurge in the use of these craft did not really begin until the late 1950s, although fascination with the idea of supporting small boats with underwater wings dates well back into the nineteenth century.
openaire +2 more sources