Journal of Hydraulic Engineering: Recent submissions
Now showing items 1-20 of 6886
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Controls on Isolated Boulder Incipient Motion: Experimental Insights into Froude Number, Relative Submergence, and Shape
(American Society of Civil Engineers, 2026)AbstractPredicting boulder incipient motion is critical for designing hydraulic structures, river restoration, and hazard mitigation, yet the process remains poorly understood. This study investigates incipient motion ... -
Flood Inundation-Induced Bridge Pressure Scour: Developing New Prediction Equations and Exploring Machine-Learning Methods
(American Society of Civil Engineers, 2026)AbstractBridge pressure scour occurs when the bridge deck is inundated during a flood event, causing significant threats to the stability of local streambeds and bridge foundations. In the present study, new flume experiments ... -
Analytical Modeling of Flow-Induced Pore Pressure and Initial Bedform Deformation in Poroelastic Beds Using Biot’s Theory
(American Society of Civil Engineers, 2026)AbstractThis paper develops an analytical framework to quantify how flow-induced pore-pressure fields drive initial bedform deformation in soft, saturated porous beds. Starting from Biot’s poroelastic framework, the governing ... -
Scour due to Submerged Planar Wall Jets: A Model
(American Society of Civil Engineers, 2026)AbstractIn this study, equilibrium scour formed by submerged planar turbulent wall jets over a sediment bed is modeled. The theoretical framework consists of a flow model coupled with an equilibrium scour model. Using ... -
Self-Aeration and Surface Turbulence at a Large Dam Spillway with a Smooth Converging Chute
(American Society of Civil Engineers, 2026)AbstractOn a spillway chute, the upstream section is nonaerated, and a strong air–water mix develops downstream of the onset region of free-surface aeration. During a series of flood events, between 1997 and 2024, qualitative ... -
New Semiempirical Formula for Evaluating the Equilibrium Scour Depth at Bridge Piers
(American Society of Civil Engineers, 2026)AbstractEstimating the equilibrium scour depth (yse) at bridge piers is essential for both bridge foundation design and flood risk assessment. Traditional methods typically rely on empirical formulas derived from ... -
Scour Around Large Wood with Rootwads: An Experimental and Computational Study
(American Society of Civil Engineers, 2026)AbstractFallen trees in river corridors play a critical role in fluvial hydraulics. In this study, we investigated the impact of a porous rootwad on flow and sediment transport around a single log. We conducted flume ... -
Contaminant Intrusion and Extrusion Patterns in Pipelines during Transient Flow: Eulerian and Lagrangian Methods
(American Society of Civil Engineers, 2026)AbstractContaminant intrusion in water distribution systems (WDSs) poses a significant challenge, necessitating precise numerical models to estimate intruded contaminants and predict their fate. This study introduces a ... -
Research on the Collaborative Optimization of One-Way Surge Tanks Based on Water Hammer Theory and Intelligent Optimization Algorithms
(American Society of Civil Engineers, 2026)AbstractA coupling optimization model is developed to coordinate the design of the one-way surge tank (OWST) volume and the valve closing rule. This approach aims to address the strong coupling regarding the parameters of ... -
Feasibility Study on the Application of Distributed Optical Fiber Sensing on Bank Toe Protection Structure Measurement in Fluvial Physical Models
(American Society of Civil Engineers, 2026)AbstractAccurately simulating and monitoring flexible mattress deformation in mobile-bed models is a challenge. This study develops a realistic model-scale representation of a flexible mattress and uses distributed optical ... -
Investigation of Air Pressurization during the Filling of Complex Pipe Networks
(American Society of Civil Engineers, 2026)AbstractDrinking water systems (DWS) frequently undergo maintenance operations in which emptying and subsequent filling (i.e., priming) operations are necessary. Air pressurization is an undesired effect during priming ... -
Wavelet-Based Method for Estimating Local Dune Dimensions: Method Development and Initial Validation for Select Sand-Bed River Datasets
(American Society of Civil Engineers, 2026)AbstractQuantification of local dune dimensions from bathymetric data obtained in large sand-bed rivers is important for navigation assessments and hydraulic roughness estimation. This study developed, calibrated, and ... -
Experimental Investigations of Scour Characteristics and Hydrodynamics around Bridge Piers under Pressure Flow Conditions
(American Society of Civil Engineers, 2026)AbstractBridges are often designed under the assumption of free-flow conditions under the decks. However, during the high flood events, the flow condition can change to a pressure flow as the deck becomes submerged, leading ... -
Initiation of Air Trapping between Two Manholes in a Stormwater Conduit
(American Society of Civil Engineers, 2026)AbstractNew analysis methods are developed for evaluating the initiation of air trapping in a closed stormwater conduit between two manholes. Identifying conduits and flow conditions at risk for air trapping is a necessary ... -
Development of a New Slot-Weir-Orifice Combined Fishway
(American Society of Civil Engineers, 2026)AbstractSo far, only a small number of studies have focused on the combined fishway. This study aims to develop a new slot-weir-orifice combined fishway (SWOF-9) on the basis of the previous vertical-slot fishway (VSF), ... -
Effect of a Submerged Rectangular Barrier Structure in the Lake Entrance Area on the Flow Field
(American Society of Civil Engineers, 2026)AbstractThe investigation of the flow field driven by the submerged structures in the lake entrance area is helpful for preventing excessive delivery of sediment into the main lake area. Taking the lake entrance area as ... -
Analytical Model of the Stagnation Point in Oblique-Submerged Circular Impinging Jet
(American Society of Civil Engineers, 2026)AbstractThe stagnation point, defined as the location of maximum pressure, is a key characteristic of oblique submerged circular impinging jets. This study presents a theoretical analytical model to predict the stagnation ... -
Experimental Investigation of Wall-Normal Pressure Gradient over the Bottom of a Turbulent Open-Channel Flow
(American Society of Civil Engineers, 2026)AbstractThis paper presents the results of an experimental investigation of a wall-normal pressure gradient in a turbulent open-channel flow with a smooth bottom (wall). Neutrally buoyant particles 1 mm in size were ... -
Threshold for Sediment Resuspension under Hydrosuction: An Analytical and Experimental Approach
(American Society of Civil Engineers, 2026)AbstractThe current study explores the threshold for sediment resuspension under hydrosuction by considering the balance of forces acting on sediment particles just below the suction pipe. The threshold shear stress under ... -
Applying a Passive Vibration Detection Technique to Assess Bridge Pier Scour
(American Society of Civil Engineers, 2026)AbstractTraditional underwater measurements typically require equipment installation in the soil surrounding the bridge pier, which is high-cost and susceptible to flood-induced damage. To overcome these challenges, this ...