Results 11 to 20 of about 46,891 (165)

Modelling Swimming Hydrodynamics to Enhance Performance [PDF]

open access: yesThe Open Sports Sciences Journal, 2014
Swimming assessment is one of the most complex but outstanding and fascinating topics in biomechanics. Computational fluid dynamics (CFD) methodology is one of the different methods that have been applied in swimming research to observe and understand water movements around the human body and its application to improve ...
Marinho, D.A.   +3 more
openaire   +2 more sources

Comparative Investigation on Hydrodynamic Performance of Pump-Jet Propulsion Designed by Direct and Inverse Design Methods

open access: yesMathematics, 2021
Pump-jet propulsion, a new propulsion technology, is primarily designed for underwater vehicles. Because of its concealment and excellent performance, it has been widely used, but due to its confidentiality and complexity, few studies have been published.
Yunkai Zhou   +8 more
doaj   +1 more source

Nanotechnology to Improve the Performances of Hydrodynamic Surfaces [PDF]

open access: yesCoatings, 2019
Nature continues to inspire scientists to adapt solutions in order to satisfy human needs, mainly in the maritime domain with metallic surface corrosion and its mechanical friction. In this research, the source of innovation comes from the lotus leaf and its well-known super-hydrophobicity.
Alshehri, Ali Ahmed   +3 more
openaire   +3 more sources

Optimization on Hydrodynamic Performance for First Level Energy-Capturing Enhancement of a Floating Wave Energy Converter System with Flapping-Panel-Slope

open access: yesJournal of Marine Science and Engineering, 2023
Based on the wave reflection principle, a floating flapping-panel wave energy converter was developed. The feasibility study and optimization study of the new WEC was carried out by laboratory research and computational fluid dynamics techniques.
Tianyu Song   +4 more
doaj   +1 more source

Optimal Design and Performance Analysis of a Hybrid System Combining a Semi-Submersible Wind Platform and Point Absorbers

open access: yesJournal of Marine Science and Engineering, 2023
Integrating point absorber wave energy converters (PAWECs) and an offshore floating wind platform provide a cost-effective way of joint wind and wave energy exploitation. However, the coupled dynamics of the complicated hybrid system and its influence on
Binzhen Zhou   +5 more
doaj   +1 more source

Multi-Parameter Optimization Analysis of Hydrodynamic Performance for Rim-Driven Thruster

open access: yesEnergies, 2023
The efficiency of rim-driven thrusters (RDT) has always been the focus of attention in the context of energy conservation and environmental protection.
Yuanzhe Nie   +4 more
doaj   +1 more source

Hydrodynamic performance of small unmanned catamaran based on STAR-CCM+

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesThis study aims to carry out systematic research on the hydrodynamic performance of a small unmanned catamaran. MethodsBased on STAR-CCM+ numerical simulation software, the hydrodynamic performance of a small unmanned catamaran in a hydrostatic
Yuting CHEN   +4 more
doaj   +1 more source

Hydrodynamic performance of a vortex generator [PDF]

open access: yesExperimental Thermal and Fluid Science, 2003
Abstract The performance of a vortex generator intended for a marine application is investigated experimentally in a cavitation tunnel. Several tests were made as a preliminary study to gain basic knowledge of an initial design concept. Investigations included flow visualisation of local flow and wake trajectory, cavitation inception and occurrence ...
P.A Brandner, G.J Walker
openaire   +1 more source

Optimal Matching of Flapping Hydrofoil Propulsion Performance Considering Interaction Effects of Motion Parameters

open access: yesJournal of Marine Science and Engineering, 2022
In order to maximize the propulsion efficiency of flapping hydrofoil, a new method is proposed in this paper. The effects of heave amplitude, pitch amplitude, and the phase difference between heave and surge on propulsion performance were analyzed by ...
Zixuan Wang   +5 more
doaj   +1 more source

Aeration performance of hydrodynamic flow regulators

open access: yesWater Science and Technology, 2013
Hydrodynamic flow regulators are used in environmental engineering as a replacement for traditional flow throttling devices. They are extremely efficient, reliable and free from the common disadvantages of traditional devices. Recent research by the authors indicated that the atomization of a liquid by hydrodynamic flow regulators accelerates ...
P, Wójtowicz, M, Szlachta
openaire   +2 more sources

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