Journal of Hydraulic Engineering: Recent submissions
Now showing items 821-840 of 6886
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Experimental Investigation on a System of Crossbeams As Energy Dissipator in Abruptly Expanding Channels
(American Society of Civil Engineers, 2016)Several studies have demonstrated that in abruptly expanding channels phenomena of flow asymmetry can arise under certain tailwater conditions. These undesired situations are characterized by high-velocity concentrations ... -
Marchi’s Research on Supercritical Flow in Tight Bends and Backwater Effects
(American Society of Civil Engineers, 2016)Forum papers are thought-provoking opinion pieces or essays founded in fact, sometimes containing speculation, on a civil engineering topic of general interest and relevance to the readership of the journal. The views ... -
Sparse Null Space Algorithms for Hydraulic Analysis of Large-Scale Water Supply Networks
(American Society of Civil Engineers, 2016)In this article, a comprehensive review of existing methods is presented and computationally efficient sparse null space algorithms are proposed for the hydraulic analysis of water distribution networks. The linear systems ... -
Erosion of Sand from a Gravel Bed
(American Society of Civil Engineers, 2016)Cleaning of fine sediment out of gravel streambeds has become an important method to restore affected stream habitats. Introducing the increased flows needed to entrain fine sediments without eroding the coarser fractions ... -
Transient-Based Frequency Domain Method for Dead-End Side Branch Detection in Reservoir Pipeline-Valve Systems
(American Society of Civil Engineers, 2016)Unexpected, unknown or unused side pipe branches, termed dead-end side branches in this study, commonly exist in water pipe systems because of incorrect device installations or illegal connections. These connections are ... -
Analysis of Bridge Construction as a Restoration Technique for Everglades National Park, FL, USA, Using Hydrological Numerical Modeling
(American Society of Civil Engineers, 2016)Since the construction of the Tamiami Trail in the 1920s, overland flow to the Florida Everglades has decreased significantly, affecting ecosystems from the wetlands to the estuary. As part of the effort to return flows ... -
Effects of Relative Column Width and Pile-Cap Elevation on Local Scour Depth around Complex Piers
(American Society of Civil Engineers, 2016)An experimental campaign of 25 long-duration (13–47 days) laboratory tests was carried out with three complex pier models under steady clear-water flow conditions. Each model, characterized by a different relation ... -
How Reliable Are ANN, ANFIS, and SVM Techniques for Predicting Longitudinal Dispersion Coefficient in Natural Rivers?
(American Society of Civil Engineers, 2016)Determination of longitudinal dispersion coefficient (LDC) using artificial intelligence (AI) techniques can improve environmental management strategies for river systems. However, the uncertainty involved in AI models has ... -
Lattice Boltzmann Model Using Two Relaxation Times for Shallow-Water Equations
(American Society of Civil Engineers, 2016)A lattice Boltzmann method with two relaxation times for shallow-water equations (LABSWETRT) without turbulence is proposed. The described model is validated through simulations of three typical cases with laminar flows: ... -
Representative Grain Size and Equivalent Roughness Height of a Sediment Bed
(American Society of Civil Engineers, 2016)The representative grain size of a sediment bed can be defined as the mean-volume diameter, which varies with the geometric standard deviation of sediment size. The obtained results explain why the representative sediment ... -
Design of Sediment Traps with Open Check Dams. I: Hydraulic and Deposition Processes
(American Society of Civil Engineers, 2016)Sediment traps with open check dams are widely used structures in flood hazard mitigation. This paper reviews the literature dedicated to their design. First, the general context in which sediment traps are built and their ... -
Design of Sediment Traps with Open Check Dams. II: Woody Debris
(American Society of Civil Engineers, 2016)Sediment traps with open check dams are widely used structures in flood hazard mitigation. This paper and its companion review the literature on their design. The companion paper examines hydraulic and deposition processes ... -
Experimental Quantification of Contaminant Ingress into a Buried Leaking Pipe during Transient Events
(American Society of Civil Engineers, 2016)It has been hypothesized that negative pressures caused by transients within water distribution systems may result in ingress of contaminated groundwater through leaks and hence pose a risk to public health. This paper ... -
Two-Dimensional Two-Phase Depth-Integrated Model for Transients over Mobile Bed
(American Society of Civil Engineers, 2016)Fast geomorphic transients may involve complex scenarios of sediment transport, occurring near the bottom as bed load (i.e., saltating, sliding, and rolling) or as suspended load in the upper portion of the flow. The ... -
Wall-Roughness Effects on Flow and Scouring in Curved Channels with Gravel Beds
(American Society of Civil Engineers, 2016)Due to a complex three-dimensional flow pattern, the outer banks of river bends are predisposed to erosion. When endangering civil structures, preventing measures to mitigate this erosion are thus required. Vertical ribs ... -
Discussion of “Mississippi River Streamflow Measurement Techniques at St. Louis, Missouri” by Chester C. Watson, Robert R. Holmes Jr., and David S. Biedenharn
(American Society of Civil Engineers, 2015) -
Closure to “Clear-Water Local Scour around Pile Groups in Shallow-Water Flow” by Ata Amini, Bruce W. Melville, Thamer M. Ali, and Abdul H. Ghazali
(American Society of Civil Engineers, 2013) -
Closure to “Mississippi River Streamflow Measurement Techniques at St. Louis, Missouri” by Chester C. Watson, Robert R. Holmes Jr., and David S. Biedenharn
(American Society of Civil Engineers, 2015) -
Closure to “Sensitivity Analysis of Nonequilibrium Adaptation Parameters for Modeling Mining-Pit Migration” by Dong Chen, Kumud Acharya, and Mark Stone
(American Society of Civil Engineers, 2013) -
Erratum for “Scour Caused by a Propeller Jet” by Jian-Hao Hong, Yee-Meng Chiew, and Nian-Sheng Cheng
(American Society of Civil Engineers, 2015)