Articles with "mean velocity" as a keyword



Effects of Width Ratios and Deviation Angles on the Mean Velocity in Inlet Channels Using Numerical Modeling and Artificial Neural Network Modeling

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Published in 2017 at "International Journal of Civil Engineering"

DOI: 10.1007/s40999-016-0075-5

Abstract: Dividing open channels are varied types of open channel structures used to provide water for irrigation channels, agriculture and wastewater networks. In the present study, artificial neural network (ANN) and computational fluid dynamic models are… read more here.

Keywords: mean velocity; width ratios; neural network; velocity ... See more keywords

Analysis of acoustic Doppler current profiler mean velocity measurements in shallow flows

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Published in 2020 at "Flow Measurement and Instrumentation"

DOI: 10.1016/j.flowmeasinst.2020.101755

Abstract: Abstract Acoustic Doppler current profilers (ADCPs) are commonly used instruments for measurement of natural streamflow and flow in manmade channels. Velocities measured in a profile by the instrument are used to estimate the discharge in… read more here.

Keywords: mean velocity; analysis acoustic; acoustic doppler; doppler ... See more keywords

The effect of Tai Chi exercises on postural stability and control in older patients with knee osteoarthritis.

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Published in 2017 at "Journal of bodywork and movement therapies"

DOI: 10.1016/j.jbmt.2016.09.001

Abstract: A few studies have examined the effect of Tai Chi on balance in elder patients with knee osteoarthritis (OA). The aim of this study was to determine the balance measures in elder patients with knee… read more here.

Keywords: mean velocity; chi; tai chi; chi exercises ... See more keywords

Application of through-building openings for wind energy harvesting in built environment

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Published in 2019 at "Journal of Wind Engineering and Industrial Aerodynamics"

DOI: 10.1016/j.jweia.2018.11.030

Abstract: Abstract This study investigated mean flow characteristics and structure of flow inside through-building openings with five different layout configurations for the purpose of wind energy harvesting. Two-dimensional Particle Image Velocimetry (PIV) was employed and validated… read more here.

Keywords: mean velocity; wind energy; velocity; building openings ... See more keywords

No sustained mean velocity in the boundary region of plane thermal convection

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Published in 2024 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2024.853

Abstract: Abstract We study the dynamics of thermal and momentum boundary regions in three-dimensional direct numerical simulations of Rayleigh–Bénard convection for the Rayleigh-number range $10^5\leq Ra \leq 10^{11}$ and $Pr=0.7$. Using a Cartesian slab with horizontal… read more here.

Keywords: velocity boundary; aspect ratio; sustained mean; velocity ... See more keywords
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On the general analytic solution for unsteady turbulent incompressible flow between parallel plates

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Published in 2021 at "Physics of Fluids"

DOI: 10.1063/5.0031338

Abstract: This research reports the mean-velocity field associated with a general plane-parallel flow, regardless of its being laminar, turbulent, steady-state, unsteady, or transient. The Reynolds-averaged Navier–Stokes equation is posed, with proper initial and boundary conditions, and… read more here.

Keywords: mean velocity; analytic solution; velocity; general analytic ... See more keywords

Assimilating mean velocity fields of a shockwave–boundary layer interaction from background-oriented schlieren measurements using physics-informed neural networks

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Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0208040

Abstract: We propose a novel method to reconstruct mean velocity fields of turbulent shockwave–boundary layer interactions (SBLIs) from background-oriented schlieren (BOS) measurement data using physics-informed neural networks (PINNs). By embedding the compressible Reynolds-Averaged Navier–Stokes equations into… read more here.

Keywords: physics; velocity fields; boundary layer; shockwave boundary ... See more keywords

Scaling laws for the mean velocity in adverse pressure gradient turbulent boundary layers based on asymptotic expansions

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Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0225875

Abstract: In this paper, the mean velocity profiles and the multi-layer division of the turbulent boundary layer (TBL) are studied for the entire adverse pressure gradient (APG) region before separation. By asymptotic expansions of the mean… read more here.

Keywords: pressure; turbulent boundary; law; region ... See more keywords

The reliability and validity of the bar-mounted PUSH BandTM 2.0 during bench press with moderate and heavy loads

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Published in 2019 at "Journal of Sports Sciences"

DOI: 10.1080/02640414.2019.1656703

Abstract: ABSTRACT The aim of this study was to assess the reliability and validity of the bar-mounted PUSH BandTM 2.0 to determine peak and mean velocity during the bench press exercise with a moderate (60% one… read more here.

Keywords: push bandtm; mean velocity; reliability validity; bandtm ... See more keywords

On the invariant mean velocity profile for compressible turbulent boundary layers

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Published in 2017 at "Journal of Turbulence"

DOI: 10.1080/14685248.2016.1269911

Abstract: ABSTRACTAn invariant mean velocity profile is derived and validated by direct numerical simulations of compressible turbulent boundary layers (CTBL) for a range of Reynolds number, Mach number and wall temperature. Near the wall, we reveal… read more here.

Keywords: mean velocity; velocity; invariant mean; turbulent boundary ... See more keywords

Mean velocity behaviour in the near wake of long slender cylinder with a sharp trailing edge at a high Reynolds number

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Published in 2018 at "Journal of Turbulence"

DOI: 10.1080/14685248.2018.1524580

Abstract: ABSTRACTA simple eddy viscosity model is applied to the governing equations to establish the behaviour of the mean velocity in the turbulent axisymmetric near wake. The near wake develops from a long slender cylinder which… read more here.

Keywords: mean velocity; near wake; layer; wake ... See more keywords