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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 46 for “"Tangential velocity"”.
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Radial and tangential velocity profiles in an annular flume with granular bed
DSpace SAF Submission Ingestion Package generated from Vireo submission #10065 on 2016-11-09 at 10:26:07
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On the Role of Tangential Velocity Changes in the Scattering of a Molecular Beam From a Solid Surface
Made available in DSpace on 2014-12-10T23:36:42Z (GMT). No. of bitstreams: 1 7206894.pdf: 2840136 bytes, checksum: fbbe7b0f19ad090f93e9ac4d1379499f (MD5) Previous issue date: 1971
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Axial variations and entry effects in a pressure screen
… rotor pressure pulse, and feed annulus tangential velocity. Axial variations of pulp consistency in the screen annulus and the accept chamber of the screen were studied using an internal radial sampling method. Localised pulp samples were taken and evaluated and common measures of screen …
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Unstructured staggered mesh discretisation methods for computational fluid dynamics
… based scheme SIMPLE is employed for pressure and velocity coupling. Three different approaches on unstructured staggered meshes are proposed. The first method solves for normal velocity component and interpolates the tangential velocity component, the second method solves for normal and tangential …
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Boundary Layer Development in Laminar Swirl Flow Inside a Circular Pipe.
Velocity distributions within the developing boundary layer of a swirling flow of an incompressible fluid in a circular pipe are investigated in this study. It is assumed that the intake conditions are such that the fluid, moving in the direction of the axis of the pipe, enters the pipe with an …
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The Effects of Shrouded Rotor Tip Leakage Flow on the Downstream Stator Aerodynamics in Turbines
… leakage flow experiences very little change in tangential velocity as it moves through the rotor shroud cavity, hence, when the leakage flow re-enters the mainstream downstream of the rotor trailing edge, it has higher tangential velocity than that of the mainstream flow. The aim of this …
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Validation of CFD Tornado Pressure on Building and Wind Field with TTU Vortex Chamber Measurements
… touchdown swirl ratio, core radius, the maximum tangential velocity & the elevation of maximum tangential velocity) including the ground pressure profile for validation of wind field obtained from CFD model. A comparative analysis of the four important vortex features from different tornado …
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Turbulent flowfield downstream of a perpendicular airfoil--vortex interaction
… noise, particularly BWI noise. Three-component velocity and turbulence measurements were made in unprecedented detail using a computerized miniature four-sensor hot-wire probe system; revealing much about the structure and behavior of this flow over a range of conditions. The interaction between …
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Large eddy simulation of turbulent vortices and mixing layers
… between the core and the surroundings. The mean tangential velocity decays due to this exchange of angular momentum. Second, the generation and decay of turbulent structures in a vortex with an axial velocity deficit are studied. The presence of a destabilizing wake-like axial velocity field in …
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Asymmetric Behavior of a Drop Upon Impact onto a Surface
… surface velocities were studied; such normal and tangential velocity ranges are not available in systems where a drop impacts at an angle relative to a surface. The asymmetric nature of drop spreading on moving surfaces was elucidated. A model that for the first time is able to mathematically …
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Computational and experimental study of trailing vortices
… number, and the predicted decay for maximum tangential velocity agreed very well with Iversen's correlation.
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Experimental investigation of the fluid velocity distribution in stirred tank reactors equipped with retreat-blade impellers using laser doppler velocimetry
… in any given operation. In this work, the velocity distribution inside the typical glass-lined vessel/impeller system was experimentally quantified using Laser Doppler Velocimetry (LDV), which is a non-intrusive experimental method used to determine the local velocity distribution …
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The effect of Whitcomb winglets and other wingtip modifications on wake vortices
… the VPI & SU Stability Wind Tunnel. The vortex tangential and axial velocity profiles are compared at five and twenty chord lengths downstream. Primary focus is placed on the Whitcomb winglet and its individual components, the upper winglet alone and the lower winglet alone. It is shown that the …
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Flow patterns and energy dissipation rates in batch rotor-stator mixers
… The agreement between predicted and measured velocity profiles in the bulk and of jet emerging from stator hole was very good. Results showed that the interaction between stator and rotating blades generated periodic fluctuations of jet velocity, flowrate, torque and energy dissipation rate …
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NMR von rotatorischer und translatorischer Dynamik
… of inertia effects of the particles on the velocity-depth profile is shown. In suspensions of particles undergoing Couette flow the influence of the volume fraction of the particles on the tangential velocity is demonstrated. In vertical falling liquid films the parabolic dependence of the …
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THE APPLICATION OF THE MARSUPIAL AND ROTATING CONVECTION PARADIGMS TO UNDERSTANDING THE TROPICAL CYCLOGENESIS AND INTENSIFICATION OF HURRICANE MICHAEL (2018)
… examines also the evolution of the mean radial velocity, tangential velocity and absolute angular momentum field relative to a slowly moving pouch center during the genesis and intensification.
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A kinematic analysis of sign language
… There was evidence of finger joint and wrist velocity coordination, synchronicity and hand preshaping. Angular velocity maxima and minima indicated differentiation between handshapes. Minima in the wrists' tangential velocity signified Stokoe locations, and maxima indicated movement (sign …
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An analytical study of a confined viscous vortex
… flow in the mainstream region. That is, the tangential velocity in the mainstream region is assumed to be of the form W = T(e)/R. Velocity and pressure profiles from the mainstream region are used as boundary conditions to generate an integral momentum solution in the boundary layer region. …
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Experimental investigation of noise reduction in supersonic jets due to jet rotation and to nozzle geometry changes
… chamber, which produced axisymmetric jets with a tangential velocity component. This component was found to affect the structure of the jet cell and the internal oblique shocks formed inside. In the second method, the nozzle exit plane of the cylindrical chamber was perturbed such that the …
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The turbulence structure of trailing vortex wakes
… vortex was studied using three-component velocity measurements. Vortices were generated using two symmetrical airfoils. Measurements were made in cross-sectional grids and profiles over a range of Reynolds numbers and downstream distances. Contours of axial normal stress were high-pass …
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