Journal of Hydraulic Engineering: Recent submissions
Now showing items 581-600 of 6886
-
Internal Pipe Area Reconstruction as a Tool for Blockage Detection
(American Society of Civil Engineers, 2019)Several pipeline blockage detection methods assume blockages have a regular geometric shape; that is, the blocked section is a pipe of smaller diameter than the original. These methods require a priori knowledge of the ... -
Evaluating Riparian Vegetation Roughness Computation Methods Integrated within HEC-RAS
(American Society of Civil Engineers, 2019)Determining the roughness of riparian vegetation is often a challenge in river hydraulic modeling. A large number of quantitative methods have been developed, but none of them have been integrated into any one-dimensional ... -
Characterization of the Overtopping Flow through the Downstream Shell of Rockfill Dams
(American Society of Civil Engineers, 2019)In 1997, Toledo developed a numerical model to characterize the flow through the downstream shell of a rockfill dam for the overtopping scenario. He performed a parametric study focused on nondeformable, completely saturated ... -
Movable-Bed Experiments Using Spur Dike to Concentrate Flow in One Channel of Multithreaded Channel Model
(American Society of Civil Engineers, 2019)This paper presents the results of an experimental study in which an acoustic Doppler velocimeter (ADV) was used to monitor the longitudinal velocity profiles and discharge proportions in a channel with a mobile bed and ... -
Interference of Dual Spillways Operations
(American Society of Civil Engineers, 2019)Dual spillway interference refers to the loss of hydraulic performance of spillways when they are placed close together. Spillway interference is examined using both physical experiments and numerical simulations. Stage ... -
Formula for Sediment Transport Subject to Vertical Flows
(American Society of Civil Engineers, 2019)Sediment transport is a geophysical phenomenon in which sediment particles are driven to move in streamwise and vertical directions by various forces. Almost all existing formulas of sediment transport were derived without ... -
Effect of Bridge Abutment Length on Turbulence Structure and Flow through the Opening
(American Society of Civil Engineers, 2019)The method of large eddy simulation (LES) was employed to investigate the flow and turbulence structure around bridge abutments of different lengths placed in a compound, asymmetric channel. The simulations were faithful ... -
Effects of Grain-Size Composition on Flow Resistance of Debris Flows: Behavior of Fine Sediment
(American Society of Civil Engineers, 2019)Investigations are presented on the effects of grain-size composition on the flow resistance of debris flows via laboratory experiments with bidisperse granular materials. Two models focusing on whether the smaller particles ... -
High Resolution Observations of an Outer-Bank Cell of Secondary Circulation in a Natural River Bend
(American Society of Civil Engineers, 2019)Secondary circulation is a mechanism that increases vertical exchange between the horizontal layers in open channels. Vertical shear in curved flows induces secondary circulation in the plane normal to the primary flow ... -
Quality and Quickness: Some Important Changes for the <i>Journal of Hydraulic Engineering</i>
(American Society of Civil Engineers, 2019) -
Field and Numerical Modeling Study of Turbidity Current in Shimen Reservoir during Typhoon Events
(American Society of Civil Engineers, 2019)A two-dimensional (2D) layer-averaged model was previously developed to simulate turbidity current characteristics and its sluicing in reservoirs. It was calibrated and validated using the data from a down-scale physical ... -
Discussion of “Light Attenuation Model for Waters: Linear and Nonlinear Dependencies on Suspended Sediment” by Robert L. Stewart and James F. Fox
(American Society of Civil Engineers, 2019) -
Closure to “Light Attenuation Model for Waters: Linear and Nonlinear Dependencies on Suspended Sediment” by Robert L. Stewart and James F. Fox
(American Society of Civil Engineers, 2019) -
Reviewers
(American Society of Civil Engineers, 2019) -
Influence of Stream Interactions on the Carrying Capacity of Two-Stage Channels
(American Society of Civil Engineers, 2019)Streams of water in channels that have a compound cross section interact with each other. The most characteristic feature of such channels is the transfer of momentum and mass from the main channel to the floodplains. A ... -
Smoother Than Smooth: Increasing the Flow Conveyance of an Open-Channel Flow by Using Drag Reduction Methods
(American Society of Civil Engineers, 2019)The drag reduction method using polymer additives is a common strategy to minimize friction losses when carrying fluids (water, oil, or slurries) in pipes over long distances. Previous studies showed that the interactions ... -
Modeling the Sediment Load of the Doce River after the Fundão Tailings Dam Collapse, Brazil
(American Society of Civil Engineers, 2019)The collapse of the Fundão tailings dam in Brazil spilled 32 million cubic meters of mine waste, causing a severe socioeconomic and environmental impact in the Doce River. Approximately 90% of the spilled volume settled ... -
Modeling Performance of Sediment Control Wet Ponds at Two Construction Sites in Ontario, Canada
(American Society of Civil Engineers, 2019)One of the most uncertain hydraulic designs in urban stormwater management concerns sediment control wet ponds as the event mean total suspended sediment concentration that is discharged into a receiving watercourse depends ... -
Impedance Estimation along Pipelines by Generalized Reconstructive Method of Characteristics for Pipeline Condition Assessment
(American Society of Civil Engineers, 2019)Reliable and efficient pipeline condition assessment in water transmission mains is required to locate deteriorated sections, such that water authorities can rehabilitate or replace vulnerable sections to prevent pipe ... -
Articulated Concrete Block Stability Assessment for Channelized Flow
(American Society of Civil Engineers, 2019)A moment stability analysis method which computes a safety factor using shear stress and flow velocity was previously developed for assessing the stability of articulated concrete block (ACB) systems during overtopping ...