Results 21 to 30 of about 46,891 (165)

Parametric Design of a New Float-Type Wave Energy Generator and Numerical Simulation of Its Hydrodynamic Performance

Journal of Marine Science and Engineering, 2023
A novel float-type device for wave energy power generation, designed specifically for offshore wave environments, is introduced as an innovative technology in wave energy utilization.
Yu Zhang, Dongqin Li
doaj   +1 more source

Numerical Analysis of Tip Vortex and Cavitation of Elliptic Hydrofoil with NACA 662-415 Cross Section

한국해양공학회지, 2018
This paper provides quantification of the effects of the turbulence model and grid refinement on the analysis of tip vortex flows by using the RANS(Reynolds averaged Navier-Stokes) method. Numerical simulations of the tip vortex flows of the NACA 662-415
Il-Ryong Park, Je-in Kim, Han-Sin Seol, Ki-Sup Kim, Jong-Woo Ahn   +4 more
doaj   +1 more source

Thermohydraulic performance of thermal system integrated with twisted turbulator inserts using ternary hybrid nanofluids

Nanotechnology Reviews, 2023
Mono, hybrid, and ternary nanofluids were tested inside the plain and twisted-tape pipes using k-omega shear stress transport turbulence models. The Reynolds number was 5,000 ≤ Re ≤ 15,000, and thermophysical properties were calculated under the ...
Alawi Omer A., Kamar Haslinda Mohamed, Falah Mayadah W., Hussein Omar A., Abdelrazek Ali H., Ahmed Waqar, Eltaweel Mahmoud, Homod Raad Z., Al-Ansari Nadhir, Yaseen Zaher Mundher   +9 more
doaj   +1 more source

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

Journal 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, A. Firthouse, A. M. Baranitharan   +2 more
doaj   +1 more source

Hydrodynamic performance and heat generation by centrifugal pumps [PDF]

Perfusion, 2006
For over a century, centrifugal pumps (CP) have been used in various applications, from large industrial pumps to flow pumps for aquariums. However, the use of CP as blood pumps has a rather short history. Consequently, the hydraulic performance data for a blood CP are limited.
Ganushchak, Y.M., van Marken Lichtenbelt, W., van der Nagel, T., de Jong, D.S.   +3 more
openaire   +2 more sources

The influence of bailers on the hydrodynamic performance of the seaplane

Zhongguo Jianchuan Yanjiu, 2021
ObjectivesThe hydrodynamic performance under different bailer conditions based on numerical and experimental methods was investigated. MethodsThe hydrodynamic performance of the seaplane with different displacements under different speeds was studied using an experimental method, and the viscous flow field of the seaplane under three conditions（without
Xiaoqiang WANG, Shuguang LAI, Zhijian XIAO   +2 more
openaire   +2 more sources

Influence of Central Platform on Hydrodynamic Performance of Semi-Submerged Multi-Buoy Wave Energy Converter

Journal of Marine Science and Engineering, 2019
The influence of the central platform on hydrodynamic performance of a wave energy converter (WEC) has remained elusive. To approach this dearth of relevant theoretical research, this paper presents a semi-submerged multi-buoy WEC and the results of the ...
Yuan Hu, Shaohui Yang, Hongzhou He, Hu Chen   +3 more
doaj   +1 more source

RANS analysis of the self-propulsion performance for a twin-screw ship

International Journal of Naval Architecture and Ocean Engineering
This study presents a comprehensive estimation of full-scale self-propulsion performance for a high-speed, twin-screw, single-skeg surface vessel using Reynolds-averaged Navier–Stokes (RANS)-based computational fluid dynamics (CFD). Resistance, propeller
Je-In Kim, Bu-Geun Paik, Jong-Woo Ahn, Il-Ryong Park   +3 more
doaj   +1 more source

Comparative Study of Hydrodynamic Performance of Submerged Water Jet Propeller and Conventional Propeller Under Multiple Operating Conditions

Machines
As global shipping accelerates toward a green and low-carbon transformation, submerged water jet propulsion has emerged as a promising alternative to traditional propellers due to its high speed efficiency, noise reduction, and adaptability.
Jiayi Li, Lei Ma, Dongyang Chen, Yunpeng Qi, Tiechao Bai, Guang Pan   +5 more
doaj   +1 more source

A Review of Progress and Hydrodynamic Design of Integrated Motor Pump-Jet Propulsion

Applied Sciences, 2022
The integrated motor pump-jet (IMP) propulsion system is a form of modern underwater vehicle propulsion that uses a modular design paradigm. The integrated motor propulsor is a compact construction consisting of a permanent magnet (PM) and a pump-jet ...
Qiao Li, Shahrir Abdullah, Mohammad Rasidi Mohammad Rasani   +2 more
doaj   +1 more source