Assessment of water depth change patterns in 120° sharp bend using numerical model
Water Science and Engineering, 2016 In this study, FLUENT software was employed to simulate the flow pattern and water depth changes in a 120° sharp bend at four discharge rates. To verify the numerical model, a 90° sharp bend was first modeled with a three-dimensional numerical model, and
Hossein Bonakdari +2 more
exaly +3 more sources
Experimental investigation on streamlines in a 180º sharp bend
Acta Scientiarum: Technology, 2017 One of the most important concerns of hydraulics engineers is predicting erosion at the outer banks of rivers by studying the flow pattern along the bend. Not only are the streamlines in meanders non parallel curved lines, but they are also twisted.
Mohammad Vaghefi, Maryam Akbari
doaj +3 more sources
The Role of Elasticity in the Vortex Formation in Polymeric Flow around a Sharp Bend
Applied Sciences (Switzerland), 2021 Fluid dynamic simulations using the FENE-P model of polymer physics are compared to those of an incompressible Newtonian fluid base case in order to understand the role of elasticity in the formation of vortices in a 90° bend narrow channel. The analysis
Michael Cromer
exaly +3 more sources
High transmission in 120-degree sharp bends of inversion-symmetric and inversion-asymmetric photonic crystal waveguides [PDF]
Nature CommunicationsBending loss is one of the serious problems for constructing nanophotonic integrated circuits. Recently, many works reported that valley photonic crystals (VPhCs) enable significantly high transmission via 120-degree sharp bends.
Wei Dai +5 more
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Scour variations around pier groups at a sharp bend with triad vanes
Results in EngineeringThis study applied triad submerged vanes upstream of piers and varied their submergence ratios in order to explore and reduce scouring around piers in a bend.
Mohammad Vaghefi +2 more
exaly +3 more sources
Asymmetry Propagation in a Pipe Flow Downstream of a 90° Sharp Elbow Bend
Applied SciencesPipe bends disrupt the flow, resulting in an asymmetric velocity field across the pipe diameter (D). We examined the recovery length required for the flow to return to a symmetric velocity profile downstream of a sharp elbow. The wall-resolved Large Eddy
Blaž Mikuž +2 more
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Bent-cable Regression Applied to the Daily Maximum Temperature in Cairo Through 2021 [PDF]
المجلة العلمية للدراسات والبحوث المالية والتجارية, 2023 We use the so-called bent-cable model to describe the daily maximum temperature in Cairo, Egypt through 2021which exhibit a potentially sharp change in slope. The model comprises two linear segments, joined smoothly by a quadratic bend. The class of bent
سماح عبد العزيز +1 more
doaj +1 more source
Experimental investigation of local scour under two oblong piers of a bridge crossing a sharp bend river [PDF]
Journal of Water and Land Development, 2023 Bridges built across a river bend and supported by more than one pier has been experimentally studied regarding the shape and nature of erosion and deposition.
Abdulrazaq K. Abdulwahd +1 more
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Shui kexue jinzhan, 2023 To study the effect of the outer bank slope types on the hydraulic characteristics in sharp bends, a three-dimensional hydrodynamic mathematical models was developed to simulate the flow structures under different slope types of the outer bank in the ...
Qian LI +4 more
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Effect of Bridge Piers Locations and Flow Intensity on Morphological Change in a 180-Degree River Bend [PDF]
Engineering and Technology Journal, 2023 Bridges when it crossing rivers often required multiple piers for support. One of has a limited investigation is the impact of piers on scouring and morphological aspects when a bridge crossing sharp-bend of river.
Abdurazaq Abdulwahd, Jaafar Maatooq
doaj +1 more source