Articles with "velocity ratio" as a keyword



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DEM modelling of screw pile penetration in loose granular assemblies considering the effect of drilling velocity ratio

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Published in 2019 at "Granular Matter"

DOI: 10.1007/s10035-019-0933-3

Abstract: Screw piles have been widely used as foundations for various types of structures. Drilling velocity ratio, the ratio of rotational velocity to driven velocity, is a critical parameter that affects the driven behaviors of screw… read more here.

Keywords: screw pile; velocity; loose granular; drilling velocity ... See more keywords
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Flame structure of methane/oxygen shear coaxial jet with velocity ratio using high-speed imaging and OH*, CH* chemiluminescence

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Published in 2018 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2018.03.053

Abstract: Abstract In this study, the effects of gaseous methane/oxygen injection velocity ratio on the shear coaxial jet flame structure are analyzed using high-speed imaging along with OH* and CH* chemiluminescence. The images show that, as… read more here.

Keywords: flame; jet; velocity; chemiluminescence ... See more keywords
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Doppler ultrasound in the diagnosis of Budd-Chiari syndrome in children after split liver transplantation.

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Published in 2018 at "Diagnostic and interventional imaging"

DOI: 10.1016/j.diii.2018.04.012

Abstract: PURPOSE To assess the capabilities of a velocity ratio>3 for the diagnosis of Budd-Chiari syndrome (BCS) in children after split liver transplantation using Doppler ultrasonography (DUS). MATERIALS AND METHODS A total of 28 children who… read more here.

Keywords: children split; liver transplantation; velocity ratio; diagnosis ... See more keywords
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Effect of co-flow velocity ratio on evolution of poly-disperse particles in coaxial turbulent jets: A large-eddy simulation study

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Published in 2020 at "Physics of Fluids"

DOI: 10.1063/5.0017663

Abstract: In the present work, the particle-laden coaxial turbulent jet flow is studied using large-eddy simulation (LES). An Eulerian–Lagrangian framework is used to study the interaction between the continuous phase (air) and the discrete phase (glass… read more here.

Keywords: flow velocity; velocity; study; particle ... See more keywords
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Numerical and experimental study of the effects of tangential to axial velocity ratio and structural parameters inside the nozzle on spray characteristics

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Published in 2023 at "Physics of Fluids"

DOI: 10.1063/5.0140753

Abstract: Pressure swirl nozzles are widely applied in spray cooling, dust removal, and fuel injection. To better connect the nozzle structure with the internal flow to analyze their influence on spray parameters, this paper designs a… read more here.

Keywords: spray; inside nozzle; velocity; velocity ratio ... See more keywords
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Effect of Knudsen Number, Lid Velocity and Velocity Ratio on Flow Features of Single and Double Lid Driven Cavities

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Published in 2019 at "Journal of Applied Fluid Mechanics"

DOI: 10.29252/jafm.12.05.29335

Abstract: Effects of Knudsen number, lid velocity and velocity ratio are investigated on the flow features of single lid driven cavity with an aspect ratio of one and double lid driven cavity of aspect ratio two.… read more here.

Keywords: velocity; ratio; velocity ratio; knudsen number ... See more keywords
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Computational Predictions of Velocity Ratio and Ejection Angle on Purge Flow in a Linear Turbine Cascade with Upstream Disturbance

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Published in 2020 at "Journal of Applied Fluid Mechanics"

DOI: 10.29252/jafm.13.01.29942

Abstract: Secondary air bled from the compressor which bypasses the combustion chamber is used to seal the turbine components from incoming hot gas. Interaction of this secondary air or purge flow with the mainstream can alter… read more here.

Keywords: purge flow; ejection; velocity ratio; purge ... See more keywords