Results 21 to 30 of about 33,020 (258)
Dynamic Pressure on Side Walls due to Compact of Flip Bucket Jets [PDF]
علوم و مهندسی آبیاری, 2013 In study of flip bucket, it is clear that the impact place of the jet with the downstream floor has the highest possibility of erosion compare to other places.
Hassan Hosseini +3 more
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Comparative Analysis of energy Losses in the Traditional and Triangular Flip Buckets [PDF]
علوم و مهندسی آبیاری, 2014 In this study the triangular flip bucket instead of circular shaped- with the same character but with different geometries- was studied. In this regard, the performance hydraulic overflow bucket with a bucket instead of the usual triangular shape, were ...
Mona Omidvarinia +1 more
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Numerical Simulation of 3D Flow Pattern at Open-Channel Junctions [PDF]
علوم و مهندسی آبیاری, 2011 This paper numerically investigates the 3D flow pattern at the 900 equal-width rectangular open channel junction. The Reynolds-Stress Model (RSM) is applied to simulate the turbulent flow. The flow is analyzed under steady-state conditions.
S. H. Musavi Jahromi, R. Goudarzizadeh
doaj
Intelligent Modeling and Experimental Investigation of the Collar's Impact on Reducing Scour around the Spur Dike [PDF]
Journal of Soft Computing in Civil EngineeringUsing a collar is a suitable way to protect structures in the water and reduce the scour depth around the structures. In this research, experiments were first carried out to determine the performance of the collar in reducing the scour depth of the spur ...
Hojat Karami +2 more
doaj +1 more source
Complexity, 2021 The aim of this study is to evaluate the ability of soft computing models including multilayer perceptron- (MLP-) water wave optimization (MLP-WWO), MLP-particle swarm optimization (MLP-PSO), and MLP-genetic algorithm (MLP-GA), to simulate the daily and ...
Fatemeh Sayyahi +2 more
doaj +1 more source
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source
Assessing Flow Characteristics in Chute Spillway of Neka-Gelvard Dam using Computational Fluid Dynamics [PDF]
محیط زیست و مهندسی آب, 2017 In recent years, as dam safety standards have increased, hydraulic engineers have become more eager to design an economical and safe energy dissipation system at the main flood evacuation course.
Milad Fazlollahnejad +3 more
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Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Analysis of Hydropotential and Prospects for Small Hydropower Development in Ukraine
Environmental and Climate Technologies, 2023 The share of electricity generation by small hydropower plants is the least among other renewable energy sources in Ukraine, although the SHPPs were widely operated in the past.
Halych Oksana +3 more
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Water Science and Technology, 2023 The present study aims to evaluate the performance of the impervious surface as a control (O), sandy loam substrate (SL), gravel (G), gravel with geocell layer (GGE), rosemary (R), rosemary with geocell layer (RRE), turf (T), and turf with geocell layer (
Hamidreza Ghazvinian, Hojat Karami
doaj +1 more source