Journal of Hydraulic Engineering: Recent submissions
Now showing items 701-720 of 6886
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Numerical Simulation of Vertical Buoyant Wall Jet Discharged into a Linearly Stratified Environment
(American Society of Civil Engineers, 2018)Results are presented from a numerical simulation to investigate the vertical buoyant wall jet discharged into a linearly stratified environment. A tracer transport model considering density variation was implemented. The ... -
Vertical 2D Nonhydrostatic Model Using Mode Splitting for Dam-Break Flows
(American Society of Civil Engineers, 2018)A vertical two-dimensional (2D) nonhydrostatic numerical model for dam-break flows is proposed. This model combines a depth-averaged shallow-water equations (SWEs) model and a nonhydrostatic core using mode splitting. The ... -
Rate and Distribution of Sedimentation in the Three Gorges Reservoir, Upper Yangtze River
(American Society of Civil Engineers, 2018)Sedimentation in the Three Gorges Reservoir (TGR) has been studied with a primary focus on the amount due to the decrease in sediment inflow caused by water and soil conservation projects and sediment retention of recently ... -
Effect of Nozzle Design on Bubbly Jet Entrainment and Oxygen Transfer Efficiency
(American Society of Civil Engineers, 2018)This study investigates experimentally the effect of nozzle type, including diffusers with single- and multiple-orifices with different diameters, on the hydrodynamics and mass transfer characteristics of air-water bubbly ... -
Experimental Study of Plunging-Flow Dropshafts with an Internal Divider for Air Circulation
(American Society of Civil Engineers, 2018)Plunging-flow dropshafts can entrain a large amount of air into sewer systems, pressurize downstream airspace, and cause potential sewer odor issues. In this study, a new design for a plunging-flow dropshaft is investigated ... -
Closure to “Evaluation of Sediment Diversion Design Attributes and Their Impact on the Capture Efficiency” by Ahmed Gaweesh and Ehab Meselhe
(American Society of Civil Engineers, 2018) -
Submerged Hydraulic Jump Remediation at Low-Head Dams: Partial Width Deflector Design
(American Society of Civil Engineers, 2018)Low-head dams are capable of creating dangerous countercurrents just downstream from the structure. These dangerous countercurrents are known as submerged hydraulic jumps and are responsible for hundreds of fatalities at ... -
Experimental Study on Scour at a Sharp-Nose Bridge Pier with Debris Blockage
(American Society of Civil Engineers, 2018)Previous experimental research on the effects of debris on pier scour has focused primarily on circular and rectangular piers with debris present just under flow free surface. Debris-induced scour around sharp-nose piers, ... -
Closure to “Comparison of Current Methods for the Evaluation of Einstein’s Integrals” by Kaveh Zamani, Fabián A. Bombardelli, and Babak Kamrani-Moghaddam
(American Society of Civil Engineers, 2018) -
Closure to “Shallow Water Hydro-Sediment-Morphodynamic Equations for Fluvial Processes” by Zhixian Cao, Chunchen Xia, Gareth Pender, and Qingquan Liu
(American Society of Civil Engineers, 2018) -
Closure to “Formulas for the Transportation of Bed Load” by Chong-Hung Zee and Raymond Zee
(American Society of Civil Engineers, 2018) -
Near-Field Observations of an Offshore Multiport Brine Diffuser under Various Operating Conditions
(American Society of Civil Engineers, 2018)A field experiment was conducted at an inclined multiport brine diffuser in an open-coastal embayment for plant operating capacities ranging 33–1%. A three-dimensional array of conductivity and temperature sensors captured ... -
Debris Flow Drainage Channel with Energy Dissipation Structures: Experimental Study and Engineering Application
(American Society of Civil Engineers, 2018)Experimental analyses and prototype observations of a debris flow drainage channel with energy dissipation structures were performed in this study. On the basis of 16 groups of experiments, a simple empirical relationship ... -
Multiple Inflow Branches at Supercritical-Type Vortex Drop Shaft
(American Society of Civil Engineers, 2018)Vortex drop shafts serve to overcome important elevation differences in drainage systems. If well designed, they are performant in terms of energy dissipation and safety. However, the standard design requires well-defined ... -
Modeling and Prototype Testing of Flows over Flip-Bucket Aerators
(American Society of Civil Engineers, 2018)The paper deals with a unique spillway which incorporates an aerator in each flip bucket with the intention to aerate the flow and avoid subatmospheric air cavities enclosed by the jets. In terms of jet breakup and stability, ... -
Closure to “Estimated Splash and Training Wall Height Requirements for Stepped Chutes Applied to Embankment Dams” by Sherry L. Hunt and Kem C. Kadavy
(American Society of Civil Engineers, 2018) -
Spatial Uncertainty in Depth Averaged Velocity Determined from Stationary, Transect, and Longitudinal ADCP Measurements
(American Society of Civil Engineers, 2018)This study builds upon established methods for using acoustic Doppler current profilers (ADCPs) to measure velocities to include another measurement technique—longitudinal measurements—which are increasingly being used in ... -
Roll-Waves Mathematical Model as a Risk-Assessment Tool: Case Study of Acquabona Catchment
(American Society of Civil Engineers, 2018)In an attempt to develop risk-assessment engineering tools, a method is presented that involves the application of a simplified model that represents periodic permanent roll waves in Herschel–Bulkley laminar fluid flows. ...