Browsing Journal of Hydraulic Engineering by Issue Date
Now showing items 1-20 of 6783
-
Comparison of Fast Shallow-Water Schemes on Real-World Floods
(ASCE, 1/1/2020 1)Two-dimensional shallow-water schemes on Cartesian grids are amendable for graphics processing units and thus a convenient choice for fast flood simulations. A comparison of recent schemes and validation of important use ... -
Local Scour and Flow Characteristics around Pipeline Subjected to Vortex-Induced Vibrations
(ASCE, 1/1/2020 1)Although local scour around submarine pipelines has been extensively studied in the last few decades, understanding of the mechanism of local scour around pipelines is still in its infancy stage due to the complex nature ... -
Effects of Streamwise Ridges on Hydraulic Resistance in Open-Channel Flows
(ASCE, 1/1/2020 1)This Technical Note reports on new experiments focused on hydraulic resistance in open-channel flows over beds covered with streamwise ridges. Extensive bulk friction factor measurements, combined with particle image ... -
Field-Scale Numerical Modeling of a Dense Multiport Diffuser Outfall in Crossflow
(ASCE, 1/1/2020 1)A numerical investigation of near-field brine discharge dynamics is reported for the Gold Coast Desalination Plant offshore inclined multiport brine diffuser. Quasi-steady computational fluid dynamics simulations were ... -
Erodibility of Mud–Sand Bed Mixtures
(ASCE, 1/1/2020 1)The erodibility of mud–sand bed mixtures has been studied based on experiments in a flume and in a small, vertical tube placed on the bed (Eromes-tube of 100 mm diameter with rotating propeller). Two natural mud–sand ... -
Analytical Methods and Field Applications to Test the TVDLF Method in Hillslopes and Wetlands
(ASCE, 1/1/2021)With the increased emphasis on developing integrated models capable of simulating runoff through hydrologic systems that include hillslopes and wetlands, analytical solutions have become useful in analyzing and testing ... -
Reservoir Level Rise under Extreme Driftwood Blockage at Ogee Crest
(ASCE, 1/1/2021)Dams are civil structures essential to modern civilization. However, they can be a threat if not properly designed and operated. A particular risk that potentially can lead to dam failure is the blocking of the spillway ... -
Flow and Scour around Idealized Porous Engineered Log Jam Structures
(ASCE, 1/1/2021)Engineered log jams (ELJs) are used widely in practice as a river restoration measure. One desired feature of an ELJ is its porous nature, which plays an important role in hydrodynamics and sediment response. Currently ... -
Effect of Coflow Turbulence on the Dynamics and Mixing of a Nonbuoyant Turbulent Jet
(ASCE, 1/1/2021)The effect of a turbulent coflow on a turbulent round jet is investigated experimentally. The primary objective of this work is to study the evolution of the turbulent jet as the level of the coflow turbulence is varied. ... -
Risk Assessment of Levee Seepage Failure Based on the Levee Seepage Failure Probability Pf and the Levee Vulnerability Index t*
(ASCE, 1/1/2021)This study presents scientific methods for risk assessment of levee seepage failure. First, the levee seepage failure probability, Pf, was calculated by reliability analysis considering muddying and slope sliding due to ... -
Numerical Investigation of High Frequency Wave-Leak Interaction in Water-Filled Pipes
(ASCE, 1/1/2021)Actively generated pressure waves are studied widely and applied in transient-based leak detection for pipe systems. High-frequency (HF) waves, the wavelength of which is on the order of the pipe diameter or smaller, provide ... -
Hydraulic Jump Stilling Basin Design over Rough Beds
(ASCE, 1/1/2021)This paper presents a new method that is able to define the hydraulic jump peculiarities in rough-bed conditions. The findings of this paper improve the literature and guidelines on the design of a stilling basin over a ... -
Hydraulic Behavior of Progressively Lengthened Mine-Waste Dumps
(ASCE, 10/1/2020 )Essentially, linear mine-waste dumps at open-pit mine sites represent expedient places to deposit large quantities of waste rock. Being placed in valleys in most cases, the effect of the water flowing through the deposit ... -
Run-Up of Impulse Wave Trains on Steep to Vertical Slopes
(ASCE, 10/1/2020 )Impulse wave trains are generated by subaerial landslides, rockfalls, or avalanches impacting a water body. Especially in engineered reservoirs, the run-up of waves with small relative heights is critical due to the small ... -
Experimental and Theoretical Study of Local Scour around Three-Pier Group
(ASCE, 10/1/2020 )The prediction of bridge-pier scour has been mostly aimed for a single pier of various sizes, shapes, and alignments with flow. For the case of multiple piers, widely used manuals still recommend using single-pier scour ... -
Geometric Effects on Discharge Relationships for Labyrinth Weirs
(ASCE, 10/1/2020 )Published labyrinth weir design methods, along with specific site constraints, are typically used to develop an appropriate labyrinth weir geometry (footprint, weir height, wall thickness, apex dimensions, sidewall length, ... -
Leak Detection for Pipelines Using In-Pipe Optical Fiber Pressure Sensors and a Paired-IRF Technique
(ASCE, 10/1/2020 )Leak detection is crucial in reducing water loss and improving the efficiency of water transmission in water distribution systems. A hydraulic transient paired-IRF (impulse response function) technique previously developed ... -
Estimating Sediment Settling Velocities from a Theoretically Guided Data-Driven Approach
(ASCE, 10/1/2020 )Sediment settling velocities are commonly estimated from analytical or process-based approaches. These approaches have theoretical constraints due to the incompletely resolved settling physics. A parametric data-driven ... -
Eulerian Deposition Model for Sediment Mixture in Gravel-Bed Rivers with Broad Particle Size Distributions
(ASCE, 10/1/2020 )Predicting sediment transport and river morphodynamics is a challenging task in gravel-bed rivers where sediment mixtures have various particle sizes. In this study, we derive a binary packing formula by introducing the ... -
Analytical and Experimental Investigations of Dam-Break Flows in Triangular Channels with Wet-Bed Conditions
(ASCE, 10/1/2020 )Based on the method of characteristics, in this study an analytical solution for one-dimensional shallow-water equations is developed to simulate the instantaneous dam-break flows propagating down a triangular wet-bed ...