Results 11 to 20 of about 62,524 (309)

Hydrodynamic Performance and Flow Field Characteristics of Tidal Current Energy Turbine with and without Winglets

open access: yesJournal of Marine Science and Engineering, 2023
In order to gain a more comprehensive understanding of the influence of winglets on the hydrodynamic performance and flow field characteristics of tidal current energy turbines, two different shapes of winglets are designed, and numerical simulation ...
Yi Wang   +3 more
doaj   +1 more source

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

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

Validation of prediction technology of ship propulsion hydrodynamic performance in LOGOS software package

open access: yes, 2022
Object and purpose of research. The objects of research are models of propeller and impeller of a water jet. The purpose of the work is to validate the new calculation module LOGOS of domestic software complex for engineering analysis and the technology
Kuznetsova A.V., Taranov A.E.
core   +1 more source

Asymmetrical Oscillating Morphology Hydrodynamic Performance of a Novel Bionic Pectoral Fin

open access: yesJournal of Marine Science and Engineering, 2022
This research proposes a novel bionic pectoral fin and experimentally studied the effects of the oscillation parameters on the hydrodynamic performance of a bionic experimental prototype. Inspired by manta rays, the bionic pectoral fin was simplified and
Cheng Xing   +4 more
doaj   +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

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

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