Journal of Hydraulic Engineering: Recent submissions
Now showing items 81-100 of 6800
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Linear and Weakly Nonlinear Instabilities of Sand Waves Caused by a Turbulent Flow
(ASCE, 2024/05/01)This study examines the instability of sand waves (dunes and antidunes) from both linear and weakly nonlinear perspectives. The linear and weakly nonlinear analyses use the standard linearization and the center manifold-projection ... -
Near-Full-Scale Hydraulic Modeling of Fish-Friendly Culvert with Full-Height Sidewall Baffles
(ASCE, 2024/07/01)The adoption of baffles is relatively common in the construction of culverts, to assist with the upstream passage of migrating fish species. However, there still is a lack of systematic studies of the complicated hydraulic ... -
Flow in Sewers with Bottom Obstacles
(ASCE, 2024/07/01)This study conducted experiments to investigate the impact of bottom obstacles, specifically broad-crest weir-type and cylindrical obstacles, on the flow within a sewer pipe. It was observed that these two types of obstacles, ... -
Application of Material Point Method and Mohr-Coulomb Strain Softening Constitutive Model in Simulations of Multiphase Granular Flows
(ASCE, 2024/05/01)Sudden displacement of large volumes of liquid–granular mixtures in nature (dam-breaks, landslides, floods, etc.) are often reported to be deadly and destructive. The flow behavior of those mixtures is complex and depends ... -
Full Nonlinearity in Weakly Dispersive Boussinesq Models: Luxury or Necessity
(ASCE, 2024/01/01)Boussinesq-type (BT) models play a major role in coastal engineering applications. Due to their asymptotic nature, these models have lent themselves to constant study and improvement based on the inclusion/removal of ... -
2D Serre-Green-Naghdi Equations over Topography: Elliptic Operator Inversion Method
(ASCE, 2024/01/01)Multidimensional Serre–Green–Naghdi equations are numerically solved by using a natural hyperbolic-elliptic splitting. The hyperbolic step is solved by semidiscret finite volume methods. The elliptic step is related to ... -
Coupled-ISPH Framework for Modeling Tsunamis Induced by Landslides: Subaerial to Submerged
(ASCE, 2024/05/01)A novel coupled approach to modeling various stages of waves generated by different types of landslides (e.g., subaerial to submerged) through divergence-free incompressible smoothed particle hydrodynamics (ISPH) was ... -
A Predictive Model for the Initial Droplet Size and Velocity Distribution of Flood Discharge Atomization
(ASCE, 2024/05/01)During the discharge of floodwater from a hydropower station, a significant number of water droplets in motion are created in the downstream space. These droplets vary in size and velocity, causing challenges in determining ... -
Formulating Dynamic Pressure Characteristics at Flat Plunge Pool Bottom and Inside Rock Joints
(ASCE, 2024/05/01)Accurate prediction of pressure caused by plunging jets of high spillways is essential for assessing the bed rock scour initiation and expansion. The hydrodynamic pressure characteristics at plunge pools’ bottom and inside ... -
Anomaly Detection in Targeted Pipe Sections in Water Pipe Systems Using Hydroacoustic Signal Deconvolution
(ASCE, 2024/01/01)Detection of anomalies, such as leaks, blockages and deteriorated sections, in underground water pipe networks and long transmission mains is a challenging problem. This paper proposes a novel method for anomaly detection ... -
Pressure Transient Utilization for Pipeline Particle Deposits Laceration
(ASCE, 2024/03/01)This study examined the utilization of transient shear stress for cleaning sediment and biofilm materials adhered to the inner walls of pipes in water distribution systems. This approach is presented as a potential method ... -
Culvert versus Bridge Hydraulics for Larger-Span or Short Culverts
(ASCE, 2024/03/01)A bridge versus culvert hydraulics approach may be taken to estimate the headwater of larger-span (or equivalently short) culvert-like structures, and design manuals often argue that the former should be technically ... -
Response of Bedload and Bedforms to Near-Bed Flow Structures
(ASCE, 2024/01/01)In this study, the large eddy simulation (LES) under the Eulerian method is used to solve the Navier-Stokes equations for turbulent flow simulation. The Lagrangian point-particle model is applied to track particle trajectories ... -
Evolution of Three-Dimensional Flow Field and Vortex Structures around a Single Spur Dike during the Scouring Process
(ASCE, 2024/01/01)Large eddy simulation (LES) was conducted to better understand the evolution of the flow field and vortex structures near a single spur dike. The fixed-bed boundaries used in the simulations were reconstructed from the ... -
Boussinesq Modeling of Transcritical Flows over Steep Topography
(ASCE, 2024/01/01)Nonlinear shallow water equations effectively work for various fluvial hydraulic problems. However, the underlying assumption of hydrostatic pressure is violated by flows with significant vertical acceleration around steep ... -
Design of a Novel Multislot and Pool–Weir Combined Fishway Based on Hydraulic Properties Analysis and Fish-Passage Experiments
(ASCE, 2024/05/01)A brand-new type of multislot and pool–weir combined fishway (MSWF) is firstly proposed in this paper. In fact, six MSWF configurations (MSWF-1 to MSWF-6) are designed and compared, and numerical results demonstrate that ... -
3D Displacement and Axial Load of Placed Riprap Supported at the Toe: Use of Structure from Motion
(ASCE, 2024/01/01)Improving the knowledge of the failure mechanism of riprap exposed to overtopping is valuable to enhance the construction and reinforcement techniques of rockfill dam defense systems. In this research, four experimental ... -
The Effect of Bubble Size on Lock-Exchange Density Currents through Bubble Screens
(ASCE, 2024/05/01)Bubble screens are used at sea locks to mitigate salt intrusion into inland water systems. In this paper the effectiveness of a bubble screen in delaying the mixing of salt and freshwater via lock exchange was studied. ... -
Groyne-Induced Effects on Channel-Shoal Exchange and Saltwater Intrusion in Estuarine Environments
(ASCE, 2024/01/01)Existing knowledge about groyne-induced effects is primarily based on riverine or coastal environments where salinity gradients are absent or limited. However, in estuaries, salinity gradients drive physical processes such ... -
Surge Analysis of Air Vessel with Different Connection Types in Pressurized Water Delivery Systems
(ASCE, 2024/01/01)Air vessels have been commonly applied to prevent water hammer related to pump operations, but their connection types and effects have rarely been discussed. In this study, surge analysis of air vessels with three different ...