Journal of Hydraulic Engineering: Recent submissions
Now showing items 961-980 of 6886
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Use of a Smoothed Model for Pipe Friction Loss
(American Society of Civil Engineers, 2017)This note examines a globally smooth approximation for friction loss in pipelines suggested by Burgschweiger et al. The approximation contains five parameters, two of which are open to selection. A method is provided ... -
Comparison of Current Methods for the Evaluation of Einstein’s Integrals
(American Society of Civil Engineers, 2017) -
Rock Mass Erodibility
(American Society of Civil Engineers, 2017) -
Modeling and Design of the Buenos Aires Outfalls
(American Society of Civil Engineers, 2017) -
Formulas for the Transportation of Bed Load
(American Society of Civil Engineers, 2017) -
Time Scale of Local Scour around Pipelines in Current, Waves, and Combined Waves and Current
(American Society of Civil Engineers, 2017) -
Improved 2D Shallow Water Model Able to Capture the Effects of Complex Bathymetric Features through Their Subgrid Modeling
(American Society of Civil Engineers, 2017)In this study, an improved two-dimensional (2D) model is proposed for simulating shallow water flows over complex bathymetry through their subgrid modeling. The proposed model delineates the detailed unevenness in the ... -
Pressure Transients Caused by Air-Valve Closure while Filling Pipelines
(American Society of Civil Engineers, 2017)Air valves are normally installed at high points along undulating pipelines to allow for air discharge or intake during filling or dewatering. Initial filling of a newly constructed pipeline, or refilling a portion of an ... -
Air Movement Induced by Water Flow with a Hydraulic Jump in Changing Slope Pipes
(American Society of Civil Engineers, 2017) -
Peak Pressure Surges and Pressure Damping Following Sudden Air Pocket Compression
(American Society of Civil Engineers, 2017) -
Anticipating Transient Problems during the Rapid Filling of Deep Stormwater Storage Tunnel Systems
(American Society of Civil Engineers, 2017)Deep storage tunnels are an alternative to mitigate combined sewer overflows, but they may develop transient flow problems during rapid filling conditions. Such issues include excessive surges, formation of pipe-filling ... -
Monte Carlo Approach for Uncertainty Analysis of Acoustic Doppler Current Profiler Discharge Measurement by Moving Boat
(American Society of Civil Engineers, 2017)This paper presents a method using Monte Carlo simulations for assessing uncertainty of moving-boat acoustic Doppler current profiler (ADCP) discharge measurements using a software tool known as QUant, which was developed ... -
Hydraulic Performance of an Embankment Weir with Rough Crest
(American Society of Civil Engineers, 2017)An experimental study was conducted on a large embankment weir with smooth and rough crests for a range of flow conditions 0.011≤Q≤0.226 m3/s. Close agreement between the rough and smooth crest experiments was observed ... -
Experimental Study of the Transient Flow in a Coiled Pipe Using PIV
(American Society of Civil Engineers, 2017)A comprehensive knowledge of energy dissipation during the accelerations and decelerations in transient flow is essential to develop robust and accurate hydraulic transient solvers. Currently, most transient solvers are ... -
Modeling of Spatial Lag in Bed-Load Transport Processes and Its Effect on Dune Morphology
(American Society of Civil Engineers, 2017)In the present study, two bed-load transport models are introduced in an existing idealized dune model. These allow for the modeling of the spatial lag between the sediment transport rate and bed shear stress along dune ... -
Stability of Unstructured Block Ramps
(American Society of Civil Engineers, 2017) -
Evolution of Local Pier-Scour Depth with Dune Migration in Subcritical Flow Conditions
(American Society of Civil Engineers, 2017) -
Exact Procedure for Einstein–Johnson’s Sidewall Correction in Open Channel Flow
(American Society of Civil Engineers, 2017) -
Spatially Varied Open-Channel Flow with Increasing Discharge Equation
(American Society of Civil Engineers, 2017)Flow visualization techniques and velocity measurements of jets in crossflow prove that the jet follows a distinct trajectory as if immiscible with the cross stream. Such observations reveal similarities between open ...