Journal of Hydraulic Engineering: Recent submissions
Now showing items 361-380 of 6886
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Modal Analysis of Turbulent Flow near an Inclined Bank–Longitudinal Structure Junction
(ASCE, 3/1/2021)The present study examines the effect of upstream channel bank angle on the turbulent flow characteristics and the underlying coherent structures associated with the development of local scour in the vicinity of the leading ... -
One-Dimensional Compressible Solution for Transient Cavitating Pipe Flow
(ASCE, 4/1/2021)Fluid transient phenomena involving pressure wave propagation have often been studied and solved with the method of characteristics. Only recently has the finite-volume method (FVM) been proposed and implemented to solve ... -
Effects of Inclination Angle on Archimedes Screw Generator Power Production with Constant Head
(ASCE, 3/1/2021)Three laboratory-scale Archimedes screw generators were tested for their power production. They were tested at different inclination angles corresponding to their lengths in order to maintain a constant head for each screw. ... -
Application of Three-Dimensional CFD VOF to Characterize Free-Surface Flow over Trapezoidal Labyrinth Weir and Spillway
(ASCE, 3/1/2021)The current literature for labyrinth weirs suggests that little attention has been paid to the complex free-surface flows generated downstream of these structures. In particular, there is no available guidance on the most ... -
Three-Dimensional Simulation of Scalar Transport in Large Shallow Water Systems Using Flux-Form Eulerian–Lagrangian Method
(ASCE, 2/1/2021)This study is devoted to advancing hydroenvironmental modeling of large-scale shallow water systems to the times of three-dimensional (3D) simulations, where the solution of advective transport of scalar is the focus. The ... -
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 ... -
Nonhydrostatic Formulation of Unsteady Single and Two-Layer Flow over Topography
(ASCE, 2/1/2021)A new, concise theoretical model for simulation of unsteady, nonhydrostatic two-layer flow is presented. The formulation is systematically developed from the equations of motion of an ideal fluid using a perturbation ... -
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 ... -
Boundary Shear Stress Distribution in Curved Compound Open Channels
(ASCE, 2/1/2021)An analytical model for evaluation of boundary shear stress in compound open-channel bends is developed. Perpendicular volumetric elements are generated in all cross sections of a bend. Each element represents an equation ... -
Pilot Field Implementation of Suction Dredging for Sustainable Sediment Management of Dam Reservoirs
(ASCE, 2/1/2021)The buildup of sediment deposits in reservoirs is a long-standing problem with serious consequences on the reservoirs’ functionality and the ecology of their river systems. In the last two decades, hydraulic dredging has ... -
How Large Immobile Sediments in Gravel Bed Rivers Impact Sediment Transport and Bed Morphology
(ASCE, 2/1/2021)A common approach used to mitigate riverbank erosion and maintain watercourse alignments has been through the application of riprap or larger, more stable particles to channel boundaries along reaches of interest. However, ... -
Investigation of Transient Wave Behavior in Water Pipelines with Blockages
(ASCE, 2/1/2021)Partial blockages commonly exist in water pipelines due to various physical, chemical, and biological processes, including sediment, corrosion, and biofilm. The formed blockages can result in low flowing capacity, additional ... -
Effect of 30-Degree Sloping Smooth and Stepped Chute Approach Flow on the Performance of a Classical Stilling Basin
(ASCE, 2/1/2021)Advances in dam construction techniques have significantly increased the number of stepped spillways implemented worldwide. Although stepped chutes provide enhanced energy dissipation along the chute, as compared to smooth ... -
Effectiveness of Submerged Vanes for Stabilizing Streamside Bluffs
(ASCE, 2/1/2021)The effectiveness of submerged vanes for stabilizing streamside bluffs varied over a 10-year monitoring period in a tributary to Lake Superior, United States. Submerged vanes are a river training device used to divert river ... -
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 ... -
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 ...