Results 1 to 10 of about 196,918 (182)

Investigating the Effects of Blockage Ratio on the Performance of a Surface-piercing Propeller in Free Surface Water Tunnel Tests [PDF]

open access: yesIranica Journal of Energy and Environment, 2023
This paper investigates the effect of the immersion ratio parameter on the hydrodynamic performance of three surface-piercing propellers with diameters of 0.125, 0.132 and 0.140m at different advancing speeds.
M. Beykani, R. Shafaghat, A. Yousefi
doaj   +1 more source

Hydrodynamic Coefficients for Various Postures of the Underwater Manipulator [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
The hydrodynamic coefficients of underwater manipulators constantly change during their operation. In this study, the hydrodynamic coefficients of an underwater manipulator were calculated using the finite volume method to better explain its hydrodynamic
D. Duan   +5 more
doaj   +1 more source

Energy-Conserved Hydrodynamic Lubricated Components with Wall Slippage

open access: yesInternational Journal of Rotating Machinery, 2023
The hydrodynamic thrust slider and journal bearings as well as hydrodynamic lubricated gears with the merit of energy conservation by the wall slippage are reviewed.
Xiaoxu Huang, Yongbin Zhang
doaj   +1 more source

Prediction of wave force on netting under strong nonlinear wave action

open access: yesFrontiers in Marine Science, 2023
Under the strong nonlinear wave environment, accurate simulation of wave force for aquaculture netting is an effective guarantee for cage design and safety.
Qiu-Pan Chen   +3 more
doaj   +1 more source

Homogenization results for a linear dynamics in random Glauber type environment [PDF]

open access: yes, 2012
We consider an energy conserving linear dynamics that we perturb by a Glauber dynamics with random site dependent intensity. We prove hydrodynamic limits for this non-reversible system in random media. The diffusion coefficient turns out to depend on the
Bernardin, Cedric
core   +9 more sources

DETERMINATION OF HYDRODYNAMIC RESISTANCE COEFFICIENT (MANNING’S COEFFICIENT) IN SHATT AL ARAB RIVER, SOUTHERN OF IRAQ-BASRAH [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
Shatt al-Arab River is considered one of the systems affected by the phenomenon of tides and has the economic, environmental and historical significance of the city of Basra in southern of Iraq.
Dr. Samer Adnan Al-Taei   +2 more
doaj   +3 more sources

Estimating Hydrodynamic Coefficients of Real Ships Using AIS Data and Support Vector Regression

open access: yes한국해양공학회지, 2023
In response to the complexity and time demands of conventional methods for estimating the hydrodynamic coefficients, this study aims to revolutionize ship maneuvering analysis by utilizing automatic identification system (AIS) data and the Support Vector
Hoang Thien Vu   +2 more
doaj   +1 more source

Numerical Analysis of a Mid-Water Trawl System With a 6-DOF Otter Board Model and Sea-Trial Verification

open access: yesIEEE Access, 2018
In this paper, we proposed a mathematical model of a mid-water trawl system. The model consisted of towing warps, otter boards, a trawl net, and other rigging components. The warp and the net were modeled with the lumped mass method.
Yinglong Chen   +3 more
doaj   +1 more source

Surface Roughness and Effective Stick-Slip Motion [PDF]

open access: yes, 2002
The effect of random surface roughness on hydrodynamics of viscous incompressible liquid is discussed. Roughness-driven contributions to hydrodynamic flows, energy dissipation, and friction force are calculated in a wide range of parameters.
A. Carambassis   +46 more
core   +4 more sources

Study of Hydrodynamic Dispersion Laws in Homogeneous and Heterogeneous Soil

open access: yesRenmin Zhujiang, 2022
To investigate the general laws of solute transport in homogeneous and heterogeneous soil,this study conducts column experiments in the laboratory to observe and monitor hydrodynamic dispersion under different conditions.The measured breakthrough curves ...
WANG Da   +3 more
doaj  

Home - About - Disclaimer - Privacy