Results 21 to 30 of about 123,614 (247)

Characteristics of a nanosecond pulsed sliding discharge plasma actuator at low pressure

open access: yesAIP Advances, 2023
The behavior of a nanosecond pulsed sliding discharge plasma actuator with the ambient pressure from 27 to 101 kPa is experimentally investigated. The electric characteristics, discharge morphologies, and surface temperature distribution of the actuator ...
Qijie Sun   +5 more
doaj   +1 more source

The onset of instability in unsteady boundary-layer separation [PDF]

open access: yes, 1996
The process of unsteady two-dimensional boundary-layer separation at high Reynolds number is considered. Solutions of the unsteady non-interactive boundary-layer equations are known to develop a generic separation singularity in regions where the ...
K. W. Cassel   +5 more
core   +1 more source

Anisotropic eddy-viscosity concept for strongly detached unsteady flows [PDF]

open access: yes, 2007
The accurate prediction of the flow physics around bodies at high Reynolds number is a challenge in aerodynamics nowadays. In the context of turbulent flow modeling, recent advances like large eddy simulation (LES) and hybrid methods [detached eddy ...
Harran, Gilles   +3 more
core   +1 more source

Unsteady flow field in a mini VAWT with relative rotation blades: analysis of temporal results [PDF]

open access: yes, 2013
The present wind turbine is a small one which can be used on roofs or in gardens. This turbine has a vertical axis. Each turbine blade combines a rotating movement around its own axis and around the main rotor axis.
SIMONET, Sophie   +2 more
core   +1 more source

Experimental and numerical investigation of flow over spiral grooved cylinders

open access: yesAdvances in Mechanical Engineering, 2022
This study experimentally and numerically investigates the performance of a circular cylinder with a spiral grooved surface in terms of reducing wind drag.
Jun Zhang   +4 more
doaj   +1 more source

Capabilities and limitations of Large Eddy Simulation with perfectly stirred reactor assumption for engineering applications of unsteady, hydrogen combustion sequences

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
This work evaluates the capabilities of Large Eddy Simulation with perfectly stirred reactor (PSR) assumption and detailed chemistry to predict unsteady, premixed, hydrogen combustion sequences.
F. Nicolás-Pérez   +5 more
doaj   +1 more source

Modeling dynamic loads on oscillating airfoils with emphasis on dynamic stall vortices

open access: yesWind Energy, 2021
We present a modified version of the ONERA dynamic stall model for improving the prediction of the unsteady forces and load overshoots generated by the shedding of dynamic stall vortices.
Ayman Mohamed, David H. Wood
doaj   +1 more source

Aerodynamic Sensitivity Analysis for a Wind Turbine Airfoil in an Air-Particle Two-Phase Flow

open access: yesApplied Sciences, 2019
In this paper, the Navier-Stokes equations coupled with a Lagrangian discrete phase model are described to simulate the air-particle flows over the S809 airfoil of the Phase VI blade, the NH6MW25 airfoil of a 6 MW wind turbine blade and the NACA0012 ...
Tongqing Guo   +4 more
doaj   +1 more source

Analysis of Unsteady Heat Transfer during Ice-Making Process for Ice Rink Buildings

open access: yesBuildings, 2023
The ice-making process is an important factor that affects the ice quality and the energy consumption of ice rinks. An unsteady heat transfer model is established and validated for the ice-making process.
Shiqi Wang   +5 more
doaj   +1 more source

A study of unsteady flow wave attenuation in partially filled pipe networks [PDF]

open access: yes, 1984
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The attenuation of unsteady flow in building drainage systems must be fully considered if water conservation proposals involving changes in flush volume or
Bridge, Sarah
core   +7 more sources

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