Results 1 to 10 of about 8,973,018 (251)

Numerical Investigation on Hydrodynamic Performance of a Portable AUV

Journal of Marine Science and Engineering, 2021
This paper conducts a numerical investigation on the hydrodynamic performance of a portable autonomous underwater vehicle (AUV). The portable AUV is designed to cruise and perform some tasks autonomously in the underwater world.
Lin Hong, Renjie Fang, Xiaotian Cai, Xin Wang   +3 more
doaj   +4 more sources

Comparative Analysis of Hydrodynamic Performance for Flapping Hydrofoils Driven by Three Typical Transmission Mechanisms [PDF]

Biomimetics
This study aims to optimize bionic hydrofoil propulsion performance and establish design guidelines for efficient transmission mechanisms by comparing three mechanisms (crank-slider, cylindrical cam, and synchronous belt drive).
Ertian Hua, Sihan Li, Xiaopeng Wu, Yang Lin   +3 more
doaj   +2 more sources

INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR

Brodogradnja, 2022
A numerical study is conducted to determine the hydrodynamic coupling characteristics of a contra-rotating azimuth propulsor (CRAP) in open-water conditions. The detached-eddy simulation (DES) method is utilized to run simulations. A grid verification is
Lixun Hou, Qingcai Wang
doaj   +1 more source

Design and Fully Coupled Dynamic Response Analysis of a New Floating Offshore Wind Platform

Journal of Marine Science and Engineering, 2023
Floating offshore wind platform (FOWP) has become the economically favored option for supporting wind turbines in deep waters. It is urgent to propose new concept designs for FOWPs that can be effectively deployed.
Yong Shen, Chuanyi Liu, Weichen Pan, Yajie Li, Xikun Wang   +4 more
doaj   +1 more source

Simulation study on hydrodynamic performance of podded propulsor for curise ship

Zhongguo Jianchuan Yanjiu, 2022
ObjectiveAiming at the mapping relationship between combined hydraulic components and performance, the hydrodynamic performance prediction method of a podded propulsor for cruise ship based on Reynolds-averaged Navier-Stokes (RANS) is studied ...
Yuanzhe NIE, Wu OUYANG, Gaoqiang LI, Cong ZHANG, Xincong ZHOU   +4 more
doaj   +1 more source

Numerical and Experimental Investigations on Hydrodynamic Performance of a Newly Designed Deep Bottom Trawl

Frontiers in Marine Science, 2022
In this paper, a new type of bottom trawl was designed for target fishing vessels to use in deep-water fishing grounds. The trawl’s hydrodynamic performance was investigated using numerical simulation and physical modeling methods, and a numerical model ...
Qinglong Guan, Qinglong Guan, Qinglong Guan, Wenbin Zhu, Wenbin Zhu, Wenbin Zhu, Aizhong Zhou, Yongjin Wang, Weiyao Tang, Rong Wan   +9 more
doaj   +1 more source

Research on Optimization Design of Fully Parameterized Pump-Jet Propulsion

Journal of Marine Science and Engineering, 2022
A pump-jet propulsion system is composed of rotor, stator, and duct. The stator has the front stator type and the rear stator type; the conduit also has the acceleration conduit and the deceleration conduit two forms.
Chunxiao Wu, Yu Lu, Shewen Liu, Zhiyuan Li, Zhuhao Gu, Wu Shao, Chuang Li   +6 more
doaj   +1 more source

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

Journal 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, Bin Guo, Fengmei Jing, Yunlei Mei   +3 more
doaj   +1 more source

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

Mathematics, 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, Longyan Wang, Jianping Yuan, Wei Luo, Yanxia Fu, Yang Chen, Zilu Wang, Jian Xu, Rong Lu   +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

Journal 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, Ze Li, Honghao Zheng, Chujin Liang, Zhanhong Wan   +4 more
doaj   +1 more source