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Showing 1 to 20 of 33 for “"Turbulence characteristics"”.

  1. Turbulence Characteristics in a Spiral Gas Stream

    Schowalter, William RaymondUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-05T17:15:24Z (GMT). No. of bitstreams: 1 0025277.pdf: 5982403 bytes, checksum: bf63087d7ff25bbf97015e2c9e50ee05 (MD5) Previous issue date: 1957

    uiuc Repository record

  2. Velocity and Turbulence Characteristics in Flows Through Rigid Vegetation

    Fairbanks, Jonathan DeanVirginia Tech2002

    … were conducted to investigate the velocity and turbulence characteristics in flows through rigid vegetation. The vegetation was simulated by an array of acrylic dowels mounted to the bed of a recirculating hydraulic flume. Velocity measurements were taken in both the longitudinal and vertical …

    vt Repository record

  3. Investigation of Noise Sources in Three-Stream Jets using Turbulence Characteristics

    Stuber, Marcie AlbertaVirginia Tech2017

    … comparison of eddy convection velocity and turbulence measurements in three-stream nozzles. A Time-Resolved Doppler Global Velocimetry (TR-DGV) Instrument was applied to the Nozzle Acoustic Test Rig (NATR) at NASA's Aero-Acoustic Propulsion Lab (AAPL) to measure convection velocity. Particle …

    vt Repository record

  4. Mean Flow and Turbulence Characteristics of Pool -Riffle Structures in Low -Gradient Streams

    Rodriguez, Jose FernandoUniversity of Illinois at Urbana-Champaign2015

    … the three-dimensional flow structure and turbulence characteristics of pools and riffles. The experiments included three different bed configurations: flat bed (FB), centered pools and riffles (CPR), and alternate pools and riffles (APR). The CPR configuration was included since centered …

    uiuc Repository record

  5. Experimental analysis of flow and turbulence characteristics in oscillatory boundary layers from LDV measurements

    Mier Lopez, Jose MariaUniversity of Illinois at Urbana-Champaign2015

    … From the velocity measurements, flow characteristics were obtained through the analysis of different variables including mean flow velocities, boundary layer thickness, turbulence intensities, turbulent kinetic energy, viscous and Reynolds stresses, turbulence production, eddy …

    uiuc Repository record

  6. Experimental study of flow and turbulence characteristics in open channel flow: A comparative analysis of adv data trimming methods

    Lee, JaeYoungUniversity of Illinois at Urbana-Champaign2024

    Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01

    uiuc Repository record

  7. An Investigation into Delta Wing Vortex Generators as a Means of Increasing Algae Biofuel Raceway Vertical Mixing Including an Analysis of the Resulting Turbulence Characteristics

    Godfrey, Aaron H.

    utahstate Repository record

  8. Polymer-induced turbulence modifications in an impinging jet

    Mejia Alvarez, RicardoUniversity of Illinois at Urbana-Champaign2010

    … the impact of dilute polymer solutions on the turbulence characteristics in a submersed liquid impinging-jet configuration. Turbulent impinging jets are commonly used in technological applications such as drying, scouring, cooling or heating due to an enhancement in transport characteristics in …

    uiuc Repository record

  9. Evaluation of hydraulic roughness routines and properties in the presence of vegetation

    Ouro Bang'na Nassam, Abdou Harissou

    … of the influence of vegetation on the turbulence characteristics of the flow field. Three major activities were completed in order to address these objectives. First, a roughness calculator spreadsheet was developed based on a thorough review of available techniques for predicting …

    unm Repository record

  10. Quantification of Velocity at the Sparkplug in a Lab Scale Combustion Chamber

    Kodikal, Mayur PandurangaUniversity of Windsor2021

    … to speed up the combustion, in-cylinder turbulence is induced which may impede the spark initiation. This research aims to quantify the turbulence in a constant volume optical combustion chamber. An Improved Delayed Detached Eddy Simulation (IDDES) study was done to understand the …

    windsor Repository record

  11. Trailing vortex free-surface interaction

    Neubert, Donald E., Jr.Monterey, California. Naval Postgraduate School1992

    … origin and scars and striations. Velocity and turbulence measurements have been carried out through the use of a Laser-Doppler-Velocimeter (LDV) for various positions of the vortex relative to the free surface. The results have shown that the vortex motion affects the free surface and is …

    nps Repository record

  12. Experimental Investigation of Wind Loading on a Ducted Wind Turbine

    Kasinadhuni, ChandraResearchSpace@Auckland2022

    … To enhance our understanding on the impacts of turbulence on the loading of a ducted wind turbine, an experimental analysis with changing upstream turbulence characteristics was undertaken. One fourth scaled model of an aerofoiled shaped duct (Donqi Urban Windmills) loaded with an actuator disc …

    auckland-ms Repository record

  13. The role of aquatic vegetation on oscillatory flows and sediment transport

    San Juan Blanco, Jorge EmilioUniversity of Illinois at Urbana-Champaign2021

    … array density, and wave parameters on the turbulence characteristics and their impact on suspended sediment transport. We find that vegetation morphology (shape and biomass arrangement) and biomechanical characteristics of aquatic plants impact the temporal and spatial distribution of …

    uiuc Repository record

  14. Theoretical and numerical study of air entrainment and bubble size distribution in strong free-surface turbulent flow at large Froude and Weber number

    Yu, Xiangming,1987-Massachusetts Institute of Technology2019

    Strong turbulence near an air-water interface, characterized by large Froude (Fr) and Weber number (We), leads to significant interactions and exchanges between gas and liquid, resulting in measurable air entrainment. Air entrainment influences a number of physical processes in the nature, …

    mit Repository record

  15. Flow characteristics of a transverse water jet into an unconfined water channel

    Chakraborty, SharmishthaEdith Cowan University, Research Online, Perth, Western Australia2015

    … for different velocity ratios To analyse the turbulence characteristics of the water jet in a crossflow To simulate the flow dynamics using three turbulence models (k - E. k – w and RSM) To compare the experimental results with the predictions arising from the turbulence models. The …

    edithcowan Repository record

  16. Interaction of a vortex pair and a free-surface : numerical simulation

    Ruan, Haisheng

    … and kinetic energy, and the generation of turbulence in the flow. In particular, the turbulence characteristics have been explored at Reynolds number Re =1000. In this flow, we identified a thin free-surface layer characterized by very fast variations of the turbulence intensity, the …

    njit Repository record

  17. An interferometric study of unsteady passing shock flow in a turbine cascade

    Wesner, Angela L.Virginia Tech1996

    … including low (<1.0%) and high (5%) free stream turbulence values were investigated. The transition location was found to be dependent not only on the level of turbulence but also on the turbulence characteristics. Further, an investigation was made into the application of hydrodynamic stability …

    vt Repository record

  18. Boundary Shear Stress Along Vegetated Streambanks

    Hopkinson, LeslieVirginia Tech2009

    … streambank vegetation on near-bank velocity and turbulence; (2) determining a method for measuring BSS; and, (3) examining the effects of streambank vegetation on BSS using an existing model. A second order prototype stream, with individual reaches dominated by the three vegetation types (trees, …

    vt Repository record

  19. The Effects of Curvature on Turbulent Boundary Layers Over a 3D Bump Geometry: An Experimental Study Using BeVERLI Hill

    Chen, FangzhouVirginia Tech2025

    … among curvature, pressure gradients, and turbulence characteristics. The study examines the mean velocity, Reynolds shear stresses, pressure gradient, turbulence intensity, and pressure coefficient variations in relation to the bump curvature. The results are consistent with prior studies …

    vt Repository record

  20. A Study of Aspects of the Coupling of Flow and Sediment Transport for Sand and Gravel Dunes

    Lockwood, Kenneth2019

    … in the patterns of time-averaged velocity and turbulence characteristics over the equilibrium and non-equilibrium dunes which would explain the observed changes in dune geometry. 2) An attempt was made to predict bed shear stress over the dunes. Fits were used to extend viscous stresses …

    queens Repository record

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