Results 11 to 20 of about 14,941 (216)

Visual Comparative Analysis for the Oil-air Two-Phase Flow of An Oil-Jet Lubricated Roller-Sliding Bearing [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
To discuss the lubrication characteristics of roller-sliding bearing under oil-injected lubrication, the CFD method was introduced into the fluid-structure interaction model to realize the transient simulation of oil-air two-phase flow (OATPF).
J. J. Zhang   +4 more
doaj   +1 more source

Turning flight simulation of tilt-rotor plane with fluid-rigid body interaction

open access: yesJournal of Thermal Science and Technology, 2020
Six degrees of freedom turning flight simulation is presented for a tilt-rotor aircraft represented by V-22 Osprey, considering interaction of fluid and rigid body in a coupled manner.
Ayato TAKII   +3 more
doaj   +1 more source

Computational fluid dynamic (CFD) of vertical-axis wind turbine: mesh and time-step sensitivity study

open access: yesJournal of Mechanical Engineering and Sciences, 2019
This paper presents mesh and time-step dependence study of newly designed drag type vertical axis wind turbine. Ansys FLUENT a commercially available CFD solver was used to perform CFD numerical study on the drag type wind turbine.
S. Ashwindran   +2 more
doaj   +1 more source

Numerical Prediction of Unsteady Aerodynamics of a Ducted Fan Unmanned Aerial Vehicle in Hovering

open access: yesAerospace, 2022
Recently, ducted fan unmanned aerial vehicles (UAVs) have attracted considerable attention due to their potential for application in both civil and military missions.
Hongming Cai   +2 more
doaj   +1 more source

Thrust Characteristics of Ducted Propeller and Hydrodynamics of an Underwater Vehicle in Control Motions

open access: yesJournal of Marine Science and Engineering, 2021
A numerical technique to simulate the hydrodynamic behavior of ducted propellers attached to an underwater vehicle traveling under the mutually interacting flow fields of the vehicle and the propellers is proposed; the hydrodynamic performance of the ...
Jiaming Wu   +6 more
doaj   +1 more source

An Efficient Blade Design Method of a Ducted Fan Coupled with the CFD Modification

open access: yesAerospace, 2022
In order to improve the design accuracy of the blade design method of a ducted fan based on the blade element momentum theory, the design was modified by the CFD calculation with higher accuracy to propose an integrated and efficient design method for ...
Jiahao Guo, Zhou Zhou
doaj   +1 more source

Study on the influence of dynamic/static interface processing methods on CFD simulation results of the axial-flow blood pump

open access: yesAdvances in Mechanical Engineering, 2020
Computational fluid dynamics is an essential tool for the flow field analysis of the blood pump. The interface processing method between the dynamic/static regions will affect the accuracy of simulation results, but its influence on the simulation ...
Shuai Wang, Jianping Tan, Zheqin Yu
doaj   +1 more source

Three-Bladed Horizontal Axis Water Turbine Simulations with Free Surface Effects

open access: yesInternational Journal of Applied Mechanics and Engineering, 2021
The water level above a hydrokinetic turbine is likely to vary throughout the season and even along the day. In this work, the influence of the free surface on the performance of a three bladed horizontal-axis turbine is explored by means of a three ...
L. Rodríguez   +2 more
doaj   +1 more source

Low Reynolds Number Propeller Slipstream Interference with Wing Aerodynamic Characteristics

open access: yesHangkong gongcheng jinzhan, 2018
Detailed research for wing aerodynamic characteristics of propeller slipstream at low Reynolds number could contribute the mechanism study of low speed near space flow, and provide reliable aerodynamic results.
Sun Kaijun, Bao Xiaoxiang, Fu Yiwei
doaj   +1 more source

Numerical Analysis on Self-Propulsion of a Waterjet-Propelled Ship with Different Propulsion Models

open access: yesApplied Sciences, 2022
The hydrodynamics of the waterjet-propelled ship is a challenging issue due to the sophistication of waterjet system geometry as well as waterjet–hull interaction. In current study, three different propulsion models, namely, multiple reference frame (MRF)
Yong Zhang, Zhong Li, Aiming Yang
doaj   +1 more source

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