The Cape Mendocino Earthquake: A Local Tsunami Wakeup Call?
Sudden displacement of the seafloor due to fault offset or submarine slumping can generate tsunami waves that can travel vast distances across open ocean and damage coastal communities....

Velocity Reduction at a Submerged Pipe Outlet
This paper presents the results of a specific model study to reduce the 17.5 m/s (57.3 ft/s) discharge velocity of a submerged circular pipe discharging at floor level into a 30.5 m (100...

Scour Development at Isolated River-Bed Obstacles
Development of local scour was investigated for isolated obstacles on movable beds subject to clear-water scour. The resulting maximum scour depths, scour volumes, and obstacle displacements...

Velocity Downstream of a Submerged Pipe Outlet
The velocity downstream of a submerged pipe outlet was examined in time and space. A model study was performed to examine the influence of boundary roughness changes on the velocity dissipation....

Effect of Fenders on Local Pier Scour
Physical model experiments were performed in the Hydraulics and Sediment Research Institute, Delta Barrage, Egypt, to determine the effect of fenders on the scour depth around circular...

Simulation of 3D Free Surface Flows in Hydraulic Structure with Submerged Flow Passages
This paper presents primarily the results of an application of the newly refined computational simulation model to study three-dimensional flows in a lock and dam system, which has submerged...

Double Skin Composite Construction for Submerged Tube Tunnels
A new form of sandwich construction consisting of two relatively thin steel plates, with a concrete infill has been developed for use in the construction of submerged tube tunnels. The...

Hydraulic Design of a Low Submergence Siphon Intake

Submerged Trash Survey at TVA Dams

Ecolocy-Conscious Submerged Breakwater
A submerged breakwater makes incident rough waves small when their heights exceed a certain level on the site, though the other waves lower than the level are not so much affected by the...

Wave Boundary Layer Above the Submerged Coastal Slope
A calculation method of parameters of turbulent boundary layer formed by waves is proposed. A calculation of boundary layer on a rough slope with inclination typical for steep Caucasian...

An Ocean Engineering Program for the 21st Century
An increasing number of technological changes will occur during the next decade, and many of these changes will significantly impact engineering education programs, especially in the field...

A Removable Submarine Cover for Drydock No. 2 Modernization
In order to provide balanced overhaul capability and flexibility in the 1990's and beyond, the Portsmouth Naval Shipyard in Kittery Maine, a major U.S. Navy submarine and overhaul repair...

Wave Induced Vortex Near Seashore
The vortex motion behind submerged breakwaters in the nearshore region is studied. The RCPWAVE model (Ebersole et al., 1986) is used to calculate the wave field and thus the radiator stresses...

Interaction of Viscous Free-Surface Flow with Submerged Structure
The fully-transformed unsteady incompressible Navier-Stokes equations are solved numerically in a time-dependent boundary-fitted coordinate system. In addition, the complete viscous free-surface...

Reassessing the 3-Mile State/Federal Boundary
The allocation of state versus federal authority offshore is critical in determining the complexion and pace of OCS oil and gas development. Yet, recurring drilling moratoria indicate...

Management of Historic and Non-Historic Submerged Shipwreck Resources in California
The Abandoned Shipwreck Act of 1987 encourages states to establish management programs for historic and non-historic shipwrecks. Conceptually, a management program will consist of a regulatory...

Net Late Holocene Emergence Despite Earthquake-Induced Submergence, South-Central Chile
Intertidal deposits show net late Holocene emergence along the Pacific coast near Maullin and Carelmapu, Chile (latitude 41.6°-41.7°S). The maximum amount of net emergence is about 1 m...

Artificial Headland and Submerged Groyne for a Beach Improvement Project
The design approach that was used to determine the length and elevation of a submerged groyne as well as a system for providing adjustment to the elevation of the submerged groyne is presented....

Design of Extended Length Submerged Traveling Screen and Submerged Bar Screen Fish Guidance Equipment
The hydropower projects on the Snake and lower Columbia Rivers in the Pacific Northwest are unique because these rivers are also the spawning grounds for migratory salmon. The salmon swim...

 

 

 

 

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