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Comparison of Numerical Models for the Interaction of a Fluid Transient with an Offline Air Pocket

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (5)

Effective modeling of pipe network anomalies can supplement fluid transient diagnostic techniques. This study focuses on comparing modeling approaches......

Numerical Investigation of High Frequency Wave-Leak Interaction in Water-Filled Pipes

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (1)

Actively generated pressure waves are studied widely and applied in transient-based leak detection for pipe systems. High-frequency (HF) waves, the wa......

Godunov-Type Solutions for Transient Pipe Flow Implicitly Incorporating Brunone Unsteady Friction

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (7)

An approach combining the Brunone unsteady friction model and first- and second-order Godunov-type scheme (GTS) is developed to simulate transient pip......

Roller Characteristics of Preaerated High-Froude-Number Hydraulic Jumps

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (4)

A hydraulic jump in a stilling basin at the base of spillway is typically characterized by preaerated inflow conditions. This paper presents an experi......

Experimental and Numerical Investigations of Vibration Characteristics Induced by Pressure Fluctuations in a Parallel Operating Pumping System

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (7)

Parallel pumping systems may operate with excessive vibrations as a result of complex hydraulic excitation sources. To remove excessive vibrations, it......

Approximate Analytical Solution and Laboratory Experiments for Dam-Break Wave Tip Region in Triangular Channels

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (10)

Solutions for dam-break flow mainly developed for rectangular channels are not applicable to prediction of the propagation of the dam-break wave in fr......

Hydraulics of Fluidized Cavities in Porous Matrices: Cavity Heights and Stability for Upward Water Jets

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (10)

Theoretical and experimental results for the evolution of cavities generated by upward vertical leakage jets in porous media are presented. The formul......

Simulation of Three-Dimensional Free-Surface Dam-Break Flows over a Cuboid, Cylinder, and Sphere

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (9)

A three-dimensional (3D) numerical study is undertaken to investigate dam-break flows over 3D structures. A two-phase flow model has been developed wi......

Identifying Flow Patterns in Water Pipelines Using Complex Network Theory

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (6)

Air pockets trapped in water pipelines are a common phenomenon and can lead to different air-water two-phase flow patterns: stratified, blowback, plug......

Opening Configuration Design Effects on Pooled Stepped Chutes

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (9)

Pooled stepped chutes with openings as a design requirement are associated with high flow transmission efficiency and smaller downstream dissipation s......

Field Measurements and Numerical Modeling of Hydraulic Transients in HDPE Pipeline with PRV Interaction

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (6)

Pressure reducing valves (PRVs) and high-density polyethylene (HDPE) pipes are commonly used in urban water supply systems (UWSS). To study the joint ......

Case Study of Prototype Hydraulic Jump on Slope: Air Entrainment and Free-Surface Measurement

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (9)

This paper presents a case study of a prototype B-type hydraulic jump produced downstream an irrigation-regulating gate in a natural river. The inflow......

Investigation of Transient Wave Behavior in Water Pipelines with Blockages

期刊: JOURNAL OF HYDRAULIC ENGINEERING, 2021; 147 (2)

Partial blockages commonly exist in water pipelines due to various physical, chemical, and biological processes, including sediment, corrosion, and bi......

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