Search results for "Burst cycle"

showing 3 items of 3 documents

Experimental Analysis of Horizontal Turbulence of Flow over Flat and Deformed Beds

2015

Abstract Laboratory experiments in a straight flume were carried out to examine the evolution of large-scale horizontal turbulent structures under flat-bed and deformed-bed conditions. In this paper, the horizontal turbulence of flow under these conditions is analyzed and compared. The conditioned quadrant method is applied to verify the occurrence of turbulent events. The distributions of horizontal Reynolds shear stress and turbulent kinetic energy are also presented and discussed. Results show the occurrence of an “initial” sequence of horizontal vortices whose average spatial length scales with the channel width. Under deformed-bed conditions, this spatial length does not change.

MeteorologyTurbulenceK-epsilon turbulence modelFlow (psychology)Bed formBurst cycleMechanicsLaboratory experimentVortexOpen-channel flowQuadrant (plane geometry)Physics::Fluid DynamicsFlumeFlow turbulence structureTurbulence kinetic energyOpen-channel flowGeologyWater Science and TechnologyCivil and Structural EngineeringArchives of Hydro-Engineering and Environmental Mechanics
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Turbulence structure and coherent motion in a straight laboratory flume

2012

Open channel flow flow turbulence structure burst cycle walls roughness laboratory experimentsSettore ICAR/01 - Idraulica
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Turbulent Flow Structures For Different Roughness Conditions of Channel Walls: Results of experimental investigation in laboratory flumes

2013

Walls roughnessFlow turbulence structureBurst cycleLaboratory experimentOpen channel flow
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