Results 41 to 50 of about 343 (174)

Pressure Characteristics and Cavitation on an Oscillating Hydrofoil

open access: yesJournal of the Society of Naval Architects of Japan, 1972
Unsteady cavitation that results from the non-uniformity of the flow field renders evil influences on marine propellers. It has been a general experiment for the investigation on such problems to observe unsteady cavitation in a flow field analogous to a wake pattern.
Miyata, Hideaki   +2 more
openaire   +2 more sources

Ship waves in rivers: Environmental criteria and analysis methods for measurements

open access: yesRiver Research and Applications, Volume 39, Issue 4, Page 629-647, May 2023., 2023
Abstract A literature review shows that the most important physical quantities determining environmental impact of ship waves in a waterway are the fluid velocities, maximum and minimum water levels, and size of drawdown events. Fluid velocity can vary strongly in the vertical so that the usual measurements at a single point are not enough unless made ...
John D. Fenton   +3 more
wiley   +1 more source

Lake dynamics in an Early Jurassic desert: Evidence from the Clarens Formation in southern Africa

open access: yesSedimentology, Volume 70, Issue 3, Page 865-894, April 2023., 2023
ABSTRACT Interdune deposits are sensitive to climatic fluctuations and ancient interdune lacustrine systems can reveal the drivers of erg dynamics through time and space. This southern African study details the dynamics of interdune deposition in a vast ancient desert system that was active over Pangaea in the Middle Mesozoic and formed part of one of ...
Howard V. Head, Emese M. Bordy
wiley   +1 more source

Observations of Oscillating Cavitation on a Flat Plate Hydrofoil.

open access: yesJSME International Journal Series B, 1999
An experimental investigation was made to clarify the characteristics of oscillating cavitation on a flat plate hydrofoil in a water tunnel. Dynamic the behavior of oscillating cavitation is discussed from the unsteady pressure measurements at the upstream of the blade and the visual observations of cavitation phenomena using high-speed video ...
SATO, Kotaro   +3 more
openaire   +3 more sources

Study of Underwater and Wave Gliders on the Basis of Simplified Mathematical Models

open access: yesApplied Sciences, 2022
Both underwater and wave gliders are known as autonomous unmanned energy-saving vehicles which have recently found applications for monitoring the world ocean.
Kirill Rozhdestvensky
doaj   +1 more source

Hydrodynamic Analysis of a Flopping NACA0012 Hydrofoil and Dolphin Fish-Like Model [PDF]

open access: yesJournal of Applied Fluid Mechanics
Imitating Dolphin fish-like movement is productive method for enhancing their hydrodynamic capabilities. This work aims to analyze and understand the oscillations of tail fluke of Dolphin, which can be used as a propulsive mechanism for underwater fish ...
T. Prabu   +2 more
doaj   +1 more source

A Model for Performance Estimation of Flapping Foil Operating as Biomimetic Stream Energy Device

open access: yesJournal of Marine Science and Engineering, 2020
During the recent period intensive research has focused on the advancement of engineering and technology aspects concerning the development and optimization of wave and current energy converters driven by the need to increase the percentage of marine ...
Iro E. Malefaki, Kostas A. Belibassakis
doaj   +1 more source

The sinusoidal pitching profile of a traditional oscillating hydrofoil.

open access: yes, 2019
The sinusoidal pitching profile of a traditional oscillating hydrofoil.
Jiazhong Peng (6900506)   +3 more
core   +1 more source

Influence of variation in dynamic parameters of the flexible hydrofoil on energy harvesting performance

open access: yesApplied Ocean Research
The flexible hydrofoil represents a promising tidal energy harvesting device, known for its environmentally friendly attributes. Understanding the intricacies of its energy harvesting mechanism and analyzing the impacts of key parameters are essential ...
Yuzhi Yao   +3 more
doaj   +1 more source

Control of Oscillating Foil for Propulsion of Biorobotic Autonomous Underwater Vehicle (AUV)

open access: yesApplied Bionics and Biomechanics, 2005
The paper treats the question of control of a laterally and rotationally oscillating hydrofoil for the propulsion of biologically inspired robotic (biorobotic) autonomous underwater vehicles (BAUVs).
S. N. Singh, S. Mani
doaj   +1 more source

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