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Full-Text Articles in Civil Engineering
Physical Investigation Of Downburst Winds And Applicability To Full Scale Events, Federico Canepa
Physical Investigation Of Downburst Winds And Applicability To Full Scale Events, Federico Canepa
Electronic Thesis and Dissertation Repository
Thunderstorm winds, i.e. downbursts, are cold descending currents originating from cumulonimbus clouds which, upon the impingement on the ground, spread radially with high intensities. The downdraft phase of the storm and the subsequent radial outflow that is formed can cause major issues for aviation and immense damages to ground-mounted structures. Thunderstorm winds present characteristics completely different from the stationary Gaussian synoptic winds, which largely affect the mid-latitude areas of the globe in the form of extra-tropical cyclones. Downbursts are very localized winds in both space and time. It follows that their statistical investigation, by means of classical full scale anemometric …
Erosion Control Of Steep Open Channels Using Articulated Concrete Blocks, Mohammadomid Marandi
Erosion Control Of Steep Open Channels Using Articulated Concrete Blocks, Mohammadomid Marandi
Electronic Thesis and Dissertation Repository
Overtopping flow can undermine the stability of hydraulic structures including embankments and spillways through the shear stress and the subsequent soil erosion. Increased flow velocity can cause scour, which can result in the failure of dams, bridges, and overall open channel hydraulic structures. Sediment transport is another crucial issue in open channels that can cause severe socioeconomic and environmental consequences. Two general approaches are commonly considered for scour prevention. The first approach involves flow modifications to minimize the corresponding effects on the structures. The second approach is associated with bed armoring and placing physical barriers on the natural bedding such …