Journal of Waterway, Port, Coastal, and Ocean Engineering: Recent submissions
Now showing items 821-840 of 2264
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Observations from the 2009 Samoa Tsunami: Damage Potential in Coastal Communities
(American Society of Civil Engineers, 2012)The September 2009 tsunami devastated the Samoan Islands. Damages observed in eighteen coastal villages following this natural disaster are presented. Using observations and idealized numerical simulations, four main ... -
Analytical Prediction of Pipeline Behaviors in J-Lay on Plastic Seabed
(American Society of Civil Engineers, 2012)-lay is widely accepted as a favorable method for deepwater pipeline installation. The configuration and internal force of the pipeline during the laying process are key factors for its safety, and the embedment induced ... -
Improved Model of Deep-Draft Ship Squat in Shallow Waterways Using Stepwise Regression Trees
(American Society of Civil Engineers, 2012)To maintain an optimum balance between security and efficiency of maritime transport in shallow waterways with a lot of deep-draft ship traffic such as in the St. Lawrence Waterway, it is particularly important to accurately ... -
Hydrodynamic Characteristics of a Free-Surface Semicircular Breakwater Exposed to Irregular Waves
(American Society of Civil Engineers, 2012)A free-surface semicircular breakwater (SCB) has been developed for protecting coastal and marine infrastructures against ocean waves. The hydrodynamic characteristics of the breakwater are investigated in irregular seas ... -
Impact Model Tests and Simplified Analysis for Flexible Pile-Supported Protective Structures Withstanding Vessel Collisions
(American Society of Civil Engineers, 2012)Flexible pile-supported protective structures have been used extensively in the protection of bridge piers against vessel collisions. Their success is dependent on their ability to absorb impact energy through large ... -
Long-Wave Scattering by a Vertical Cylinder with Idealized Scour Pit
(American Society of Civil Engineers, 2011)The combined diffraction and refraction of long waves around a vertical cylinder with scour pit is studied analytically on the basis of a newly derived analytic solution of the mild-slope wave equation. The geometry of the ... -
Prediction of Short-Term Operational Water Levels Using an Adaptive Neuro-Fuzzy Inference System
(American Society of Civil Engineers, 2011)Sea level estimates are important in many coastal applications and port activities. This paper investigates the ability of a neuro-fuzzy (NF) model to predict sea level variations at a tide gauge site in the Hillarys Boat ... -
Diffraction of Water Waves by a Semisubmerged Structure in a Channel
(American Society of Civil Engineers, 2011)A theoretical approach is applied to describe the diffraction of water waves by a structure in a channel of arbitrary configuration. The solution was achieved by applying the three-dimensional (3D) boundary element method ... -
Derivation of a New Model for Prediction of Wave Overtopping at Rubble Mound Structures
(American Society of Civil Engineers, 2012)Prediction of wave overtopping is a key task in the design and safety assessment of coastal structures. In this study, M5′ model tree as a new soft-computing approach was used to develop a model for the prediction of the ... -
Real-Time Prediction of Tsunami Magnitudes in Osaka Bay, Japan, Using an Artificial Neural Network
(American Society of Civil Engineers, 2011)This study examined the validity of using an artificial neural network (ANN) to predict tsunami water levels at several locations in Osaka Bay. The metropolitan areas of Osaka Bay have short warning times for tsunamis; a ... -
In Memoriam: Nicholas C. Kraus
(American Society of Civil Engineers, 2011) -
Scour at Vertical Piles in Sand-Clay Mixtures under Waves
(American Society of Civil Engineers, 2011)Marine sediments often contain sand-clay mixtures in widely varying proportions. This study presents the results of equilibrium scour and time variation of scour depths at circular piles embedded vertically in clay alone ... -
Turbidity and Other Effects Resulting from Trafalgar Sandbank Dredging and Palmar Beach Nourishment
(American Society of Civil Engineers, 2011)Beach-nourishment requirements on the southwestern Spanish coast have led to a significant increase in offshore dredging. Following a new research line, assessment of changes recorded in physicochemical and biological ... -
Evaluation of the Structure of Levee Transitions on Wave Run-Up and Overtopping by Physical Modeling
(American Society of Civil Engineers, 2012)Coastal regions are continually plagued by high water levels induced by river flooding or hurricane-induced storm surge. As with any protective structure, it is essential to understand potential problematic locations that ... -
Simulation of Water Circulation over a Model of a Submarine Canyon by Using FIC-FEM Numerical Model
(American Society of Civil Engineers, 2012)A set of numerical model experiments has been conducted to simulate the circulation driven by oscillatory forcing over a theoretical continental slope configuration used previously in laboratory experiments. The test case ... -
Flood Simulation in an Urban Catchment of Navi Mumbai City with Detention Pond and Tidal Effects Using FEM, GIS, and Remote Sensing
(American Society of Civil Engineers, 2011)Urban flooding caused by heavy rainfall and high tides is a major problem in many coastal cities. For example, major cities in India have witnessed loss of life and property, disruption to transport and power, and incidences ... -
Numerical Modeling of Breaking Waves and Cross-Shore Currents on Barred Beaches
(American Society of Civil Engineers, 2011)A process-based numerical model has been used to study nearshore hydrodynamics on barred beaches. A laboratory experiment with an offshore bar migration case followed by an onshore bar migration is simulated. A new mechanism ... -
Field Measurements of Tug Waves in the Cagliari Harbor, Italy
(American Society of Civil Engineers, 2012)Field measurements of ship-generated waves were performed in the Cagliari Harbor where tugboats are significant wave generators that can adversely affect small-sized moored vessels. A method is proposed in which the major ... -
On the Extractable Power from a Tidal Channel
(American Society of Civil Engineers, 2012)The drive to develop marine renewable energy has made resource assessments a matter of pressing need and ongoing research. In the case of tidal in-stream power generation, a central objective of such assessments is to ... -
Settling Properties of Cohesive Sediments in Lakes and Reservoirs
(American Society of Civil Engineers, 2011)The fall velocity of fine particles was measured in a column of height 2.50 m and diameter of 0.30 m to model the settling properties of cohesive sediments in lakes and large reservoirs. In contrast to the traditional ...