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   Articles with "bed roughness" as a keyword



Conservation equations for open-channel flow: effects of bed roughness and secondary currents

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recommendations! Published in 2024 at "Environmental Fluid Mechanics"

DOI: 10.1007/s10652-024-09992-y

Abstract: Time-averaged velocity fields in uniform open-channel flows over rough beds may exhibit spatial heterogeneities due to the effects of bed roughness and secondary currents (SCs). The latter typically originate from the turbulence anisotropy and spatial… read more here.

Keywords: open channel; roughness secondary; bed roughness; conservation ... See more keywords

Bed roughness effects on characteristics of turbulent confined wall jets

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recommendations! Published in 2018 at "Measurement"

DOI: 10.1016/j.measurement.2018.02.033

Abstract: Abstract In this paper, effects of bed roughness on the flow pattern and turbulence characteristics, such as velocity contours, shear stresses, Reynolds stresses and turbulence intensities on a three-dimensional wall jet were investigated experimentally. The… read more here.

Keywords: surface roughness; bed roughness; turbulence; velocity ... See more keywords

Turbulent flow characteristics over an abrupt step change in bed roughness

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recommendations! Published in 2021 at "Physics of Fluids"

DOI: 10.1063/5.0062698

Abstract: Turbulent flow characteristics over an abrupt step change in bed roughness from smooth to rough are studied measuring the flow field by a Particle Image Velocimetry (PIV) system. The smooth and rough beds are referred… read more here.

Keywords: change bed; bed roughness; step change; abrupt step ... See more keywords

Effect of bed roughness on velocity profile and water entrainment in a sedimentary density current

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recommendations! Published in 2018 at "Canadian Journal of Civil Engineering"

DOI: 10.1139/cjce-2016-0490

Abstract: In this study, the effect of bed roughness on velocity profile and water entrainment in a sedimentary density current for Richardson numbers of 1.2–7 (subcritical flow conditions) was investigated. Experiments were carried out in a… read more here.

Keywords: sedimentary density; velocity; bed roughness; water entrainment ... See more keywords

Hydrodynamic modelling and model sensitivities to bed roughness and bathymetry offset in a micro-tidal estuary

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recommendations! Published in 2020 at "Journal of Hydroinformatics"

DOI: 10.2166/hydro.2020.102

Abstract: Tidal estuaries support everyday functions for over 80% of Australia’s population living within 50 km of the coastline, and thus come under immense pressure of physicochemical changes. Most studies in estuarine applications have used the… read more here.

Keywords: micro tidal; hydrodynamic modelling; bed roughness; bathymetry offset ... See more keywords