Results 11 to 20 of about 1,222 (261)
Numerical Study of the Flow and Blockage Ratio of Cylindrical Pier Local Scour
Applied Sciences, 2023 A three-dimensional large eddy simulation model is used to simulate the turbulent flow dynamics around a circular pier in live-bed and clear-water scour conditions. The Navier–Stokes equations are transformed into a σ-coordinate system and solved using a
Mario Hurtado-Herrera +4 more
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Clear Water Scour around at a Piano Key Side Weir of the Type A at 120° Section of a 180° Curved Channel [PDF]
پژوهشهای زیرساختهای عمرانی, 2022 A side weir is a hydraulic control structure used in irrigation and drainage systems and combined sewer systems. The Piano Key Weir (PKW) is a new type of long crest weirs that have a relatively simple structure and high economic efficiency structures ...
Mehdi Jamshidi +3 more
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Clear-Water Scour at Comparatively Large Cylindrical Piers [PDF]
Journal of Hydraulic Engineering, 2013 AbstractNew long-duration clear-water scour data were collected at single cylindrical piers with the objective of investigating the effect of sediment coarseness, Dp/D50 (Dp = pier diameter; D50 = median grain size) on the equilibrium scour depth and improving the scour depth time evolution modeling by making use of the exponential function suggested ...
Lança, Rui +4 more
openaire +3 more sources
Journal of Hydroinformatics, 2023 Scour depth prediction is an important aspect of designing a bridge pier structure in a river. Proper modeling of scour depth ensures the sustainability of the structure.
Amandeep Choudhary +3 more
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Effect of debris accumulation on scour evolution at bridge pier in bank proximity
Journal of Hydrology and Hydromechanics, 2021 Large debris transported by flood affects scour features at bridge piers and increases the risks of structural failure. Geometric characteristics of the debris and the relative position of the pier with respect to the river bank are important parameters ...
Palermo Michele +2 more
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Local Scour Around The Cylindrical Bridge Pier With Two Sizes of Bed Material [PDF]
علوم و مهندسی آبیاری, 2015 Local scour around the bridge piers results from the flow impact with bridge piers and it’s streamline separation. The scour hole around the bridge piers depend on the hydraulic characteristics of the flow, the specifications of the fluid, the pier’s ...
Narges Raeisi, Mehdi Ghomeshi
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Experimental investigation of the angle effect of the cylindrical bridge group piers relative to the flow direction on the maximum scour depth of the piers [PDF]
علوم و مهندسی آبیاری, 2022 Bridges are one of the important structures in the field of land communication. With the construction of these structures in the river, a flow pattern with a three-dimensional structure is formed in the vicinity of its piers, and as a result of ...
Behnam Pourghasemzadeh, Mehdi Ghomeshi
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Combination of Riprap and Submerged Vane as an Abutment Scour Countermeasure
Fluids, 2023 Scour is one of the main causes of hydraulic structural failures. The present experimental study examines the use of riprap, submerged vanes, and a combination of these for scour reduction around vertical walls and spill-through abutments under clear ...
Abazar Fathi +6 more
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Physical model study for mitigating local scour downstream of clear over-fall
Ain Shams Engineering Journal, 2015 Local scouring action downstream of clear over-fall weirs associated with three-dimensional turbulent flow field is a common morphological problem in mobile channel bed.
Ahmed Mostafa Ahmed Amin
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Journal of Hydroinformatics, 2021 Scour around bridge piers is a complex phenomenon and it is essential to assess or predict the scour hazard around bridge piers in tandem with completely understanding its mechanism.
B. M. Sreedhara +4 more
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