Experimental Investigation on the Influence of Some Unsteady Flow Parameters on Bed Scour under the Pipeline Crossing Across the Current Experimental Investigation on the Influence of Some Unsteady Flow Parameters on Bed Scour under the Pipeline Crossing Across the Current
Erosion under the conveying pipeline affected by river flow at the cross to rivers is one the important reasons for breaking the pipelines that can lead to leakage. While the mechanism of erosion under the conveying pipeline in steady flow has been studied by many researchers, studies have shown the importance of scouring research in flood times under unsteady conditions. So, this study has been concerned with the investigation of bed river erosion under the conveying pipeline at the conflict of river in unsteady condition. To achieve this aim, some effective hydrograph’s parameters were changed in different scenarios and the results were compared to the steady condition. The result showed the erosion’s ratio of unsteady condition to steady one was 34 to 69 percent. Also, the rise of flood hydrograph’s peak led to increasing depth erosion from 7% to 22%.
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Numerical Study of the Effect of Gradual Parabolic Inlet Transition of the Elliptical LOPAC Gate on the Hydraulic Conditions of the Flow
Mahmood Shafai-Bajestan, Keyvan Kazemi Hasanvand, Mehdi Zeinivand *
Irrigation Sciences and Engineering, -
The Effect of submerged wall constructed by six leg elements on the Bed Topography of the 90-degree mild bend
Faezeh Velayati, Mahmood Shafai Bajestan *, Mahmood Khashefipour
Irrigation Sciences and Engineering,