Results 31 to 40 of about 4,929,092 (352)

Numerical Analysis of Flow Characteristics in Impeller-Guide Vane Hydraulic Coupling Zone of an Axial-Flow Pump as Turbine Device

Journal of Marine Science and Engineering, 2023
An axial-flow pump as a turbine (PAT), as compared to the conventional Francis turbine, has the advantages of not being restricted by the terrain and having lower cost to reverse the pump as a turbine for power generation.
Fan Yang, Zhongbin Li, Yuting Lv, Jindong Li, Guangxin Zhou, Ahmed Nasr   +5 more
doaj   +1 more source

Wall effects on the transportation of a cylindrical particle in power-law fluids [PDF]

, 2011
The present work deals with the numerical calculation of the Stokes-type drag undergone by a cylindrical particle perpendicularly to its axis in a power-law fluid.
A. Ambari, A. Despeyroux, AMBARI, Abdelhak, BEN RICHOU, Abderrahim, A. Ben Richou, DESPEYROUX, Antoine   +5 more
core   +1 more source

Numerical calculations on the flow near the plunging airfoil and relation with the flying or swimming animals, birds, fish and insects

Journal of Fluid Science and Technology, 2015
We investigated the influence of the airfoil geometry on the performance of the plunging airfoil numerically. In the present study, two circular arc airfoils with the different thickness were used and the numerical calculations were carried out within ...
Masahide NAKAMURA, Yuki MURASHITA, Orie TAMURA   +2 more
doaj   +1 more source

Numerical Investigation of the Effectiveness of Vegetation-Embankment Hybrid Structures for Tsunami Mitigation Introduced after the 2011 Tsunami

Geosciences, 2021
As a mitigation measure against a tsunami inundation, vegetation-embankment hybrid structures received attention after the 2011 Great East Japan Tsunami, and some structures have already been constructed or are under construction in Japan.
Norio Tanaka, Yoshiya Igarashi, Takehito Zaha   +2 more
doaj   +1 more source

Optimization of Sluice Gate under Fatigue Life Subjected for Forced Vibration by Fluid Flow

Journal of Mechanical Engineering, 2018
A ‘Sluice’ is a water-flow control gate works with sliding. So, it’s a mill race, flume or a penstock, channelling water towards a water mill, traditionally a wood or metal barrier sliding in grooves that are set in the sides of the waterway.
Poornakanta Handral, Kadam Kartik, Pawar Darshan, Medar Kiran, Makandar Iliyas, Patil Arun Y., Kotturshettar Basavaraj B.   +6 more
doaj   +1 more source

Effect of 3-Dimensional Airfoil Shape on Unsteady Fluid Forces in Pitching Motion

Journal of Fluid Science and Technology, 2010
A quasi-steady-state approach towards predicting the fluid forces acting on a hand under unsteady conditions yielded errors. The actual motion of a hand in swimming is obviously unsteady, and time-dependent fluid forces must be considered. The purpose of
Hiroaki HASEGAWA, Jun WATANABE, Kazuo MATSUUCHI   +2 more
doaj   +1 more source

Upwind sail aerodynamics: A RANS numerical investigation validated with wind tunnel pressure measurements [PDF]

, 2012
The aerodynamics of a sailing yacht with different sail trims are presented, derived from simulations performed using computational fluid dynamics. A Reynolds-averaged Navier-Stokes approach was used to model sixteen sail trims first tested in a wind ...
VIOLA, Ignazio, Riotte, M., Viola, I. M.; id_orcid, RIOTTE, Matthieu, Bot, P., BOT, Patrick, VIOLA, I.M   +6 more
core   +1 more source

Development of a Simulation Method for Body Behavior during Skydiving and an Analysis of the Most Stable Position

Journal of Fluid Science and Technology, 2011
The objective of this study was to develop a simulation method to analyze the body behavior and to clarify the most stable body position while freefalling during a skydive.
Motomu NAKASHIMA, Yuichi OMODA
doaj   +1 more source

Transient Flow Characteristic of High-Pressure Hydrogen Gas in Check Valve during the Opening Process

Energies, 2020
In high-pressure hydrogen systems, the check valve is one of the most easy-to-damage components. Generally, the high-pressure hydrogen flow can generate a strong impact on the check valve, which can cause damage and failure.
Jianjun Ye, Zhenhua Zhao, Jinyang Zheng, Shehab Salem, Jiangcun Yu, Junxu Cui, Xiaoyi Jiao   +6 more
doaj   +1 more source

Dynamometer Testing of Energy Efficient Hydraulic Fluids and Fuel Savings Analysis for US Army Construction and Material Handling Equipment

Lubricants, 2022
The US Army uses MIL-PRF-2104 SAE 10 hydraulic fluid in its construction and material handling equipment. This oil meets basic performance requirements but has not been optimized for hydraulic system efficiency.
Jill Bramer, Eric Sattler, Paul Michael
doaj   +1 more source