Index Catalog // ScholarsArchive@OSU

Environmental Effects of Tidal Energy Development

Creator:: Polagye, Brian, Van Cleve, Brie, Copping, Andrea, and Kirkendall, Keith
Abstract:: This report summarizes the outcomes of a March 22-25, 2010, workshop in Seattle, Washington, on the environmental effects of tidal energy development. The workshop focused on building capabilities to evaluate the environmental effects of tidal energy from turbines placed in the water column throughout the United States. However, it did...
Resource Type:: Technical Report
Full Text:: to 12 m/s (27 mph). For a 10 m-diameter turbine, this corresponds to approximately 20 rpm. Most

Comparison and Validation of Hydrodynamic Theories for Wave Energy Converter Modelling

Creator:: Leary, Matthew M.
Abstract:: A wide variety of hydrodynamic theories are utilized to approximate a Wave Energy Converter’s (WEC) equation of motion. Numerous theories have been refined in order to improve numerical approximations of WEC dynamics. When incorporating refined hydrodynamic theories into numerical models, there are distinct impacts on WEC rigid body motions, cable...
Resource Type:: Masters Thesis
Full Text:: polynomials that are included in the cable discretization scheme (M S Triantafyllou & Howell, 1994). A

Wave Energy Converter Array Optimization : Algorithm Development and Investigation of Layout Design Influences

Creator:: Sharp, Christopher J.
Abstract:: Realizing the vast amount of energy available in ocean waves, an industry has emerged that is progressing towards the deployment of grid–connected wave energy converters. Likely to be deployed in arrays, a challenge to the wave energy industry is maximizing the energy production of such arrays. We have been developing...
Resource Type:: Dissertation
Full Text:: be deployed in arrays, a challenge to the wave energy industry is maximizing the energy production

Marine bird colony and at-sea distributions along the Oregon coast: Implications for marine spatial planning and information gap analysis

Creator:: Suryan, Robert M., Phillips, Elizabeth M., So, Khemarith, Zamon, Jeannette E., Lowe, Roy W., and Stephensen, Shawn W.
Abstract:: Increasingly diverse interests in commercial and recreational use of marine resources are creating new challenges for coastal ocean management. One concern of increased offshore use and development off the Oregon coast is the potential impact on marine bird populations. We summarized the primary surveys of seabird breeding colonies and at-sea...
Resource Type:: Technical Report
Full Text:: binoculars to identify and count all flying or sitting birds within a strip extending 300-m out from the

Wave Energy Converter Modeling in the Frequency Domain : A Design Guide

Creator:: Bosma, Bret, Zhang, Zhe, Brekken, Ted K. A., Özkan-Haller, H. Tuba, McNatt, Cameron, and Yim, Solomon C.
Abstract:: Wave energy converter research continues to advance and new developers are continuing to emerge, leading to the need for a general modeling methodology. This work attempts to outline the design methodology necessary to perform frequency domain analysis on a generic wave energy converter. A two-body point absorber representing a generic...
Resource Type:: Conference Proceeding
Full Text:: data for many locations around the world. For example, if a site near the NDBC Stonewall Banks buoy

Acoustic Characterization of a Hydrokinetic Turbine

Creator:: Polagye, Brian
Abstract:: Abstract— This study describes the sound produced by a hydrokinetic turbine operating in a riverine environment near Iguigig, AK (USA). Drifting spar buoys equipped with hydrophones and GPS loggers were used to characterize temporal and spatial variability in turbine sound over a range of turbine operating conditions. Because of the...
Resource Type:: Technical Report
Full Text:: (104 W). The RivGen turbine consists of two 4.1 m long rotors situated symmetrically about a 2.8 m

Design Optimization of a Structurally Flexible Wave Energy Converter with a Direct Search Algorithm

Creator:: Berrier, Austin S.
Abstract:: Several wave energy converter designs have been recently proposed that are made of flexible materials. Flexible devices are able to generate electricity by being stretched, and are intended to simplify deployment and maintenance concerns over existing wave energy devices. Due to the relative infancy of flexible wave energy converters, however,...
Resource Type:: Masters Thesis
Full Text:: dispersion relationship for a 1.10 m radius and 192.0 m long tube. Found roots are shown with dots. Note that

An Inner-Shelf Wave Forecasting System for the U.S. Pacific Northwest

Creator:: Garcia-Medina, Gabriel, Özkan-Haller, H. Tuba, Ruggiero, Peter, and Oskamp, Jeffrey
Abstract:: An operational inner-shelf wave forecasting system was implemented for the Oregon and southwest Washington coast in the U.S. Pacific Northwest (PNW). High-resolution wave forecasts are useful for navigational planning, identifying wave energy resources, providing information for site-specific coastal flood models, and having an informed recreational beach user group, among other...
Resource Type:: Article
Full Text:: Stonewall, Perpetua, and Heceta Banks affect the wave field at the 20-m isobath. The Stonewall Bank

Development and Calibration of a Sound Propagation Model for the Oregon Coast

Creator:: Küsel, Elizabeth T., Siderius, Martin, Sorenson, Eric, Klinck, Holger, and Mellinger, David K.
Abstract:: In this report we present results of a sound propagation modeling study off the coast of Newport, OR. Preliminary acoustic experimental data was also collected by an underwater glider equipped with a hydrophone to measure sound levels in a short transect perpendicular to the coast and away from a sound...
Resource Type:: Technical Report
Full Text:: source located at approximately 3 nm from shore, at 5 m below the sea surface, and having a source level

A Conceptual Design Tool for High-performance Wave Energy Converters for Blue Economy Applications

Creator:: Roach, Aeron L.
Abstract:: Much like wind energy in its early years, marine energy has vast potential, and wave energy converter (WEC) concepts are constantly in development. Consequently, wave energy faces many challenges for expansion and has a wide-ranging design space of WEC concepts. The large design space demands new methods for understanding the...
Resource Type:: Masters Thesis
Full Text:: : A Conceptual Design Tool for High-performance Wave Energy Converters for Blue Economy Applications

ScholarsArchive@OSU

Environmental Effects of Tidal Energy Development

Comparison and Validation of Hydrodynamic Theories for Wave Energy Converter Modelling

Wave Energy Converter Array Optimization : Algorithm Development and Investigation of Layout Design Influences

Marine bird colony and at-sea distributions along the Oregon coast: Implications for marine spatial planning and information gap analysis

Wave Energy Converter Modeling in the Frequency Domain : A Design Guide

Acoustic Characterization of a Hydrokinetic Turbine

Design Optimization of a Structurally Flexible Wave Energy Converter with a Direct Search Algorithm

An Inner-Shelf Wave Forecasting System for the U.S. Pacific Northwest

Development and Calibration of a Sound Propagation Model for the Oregon Coast

A Conceptual Design Tool for High-performance Wave Energy Converters for Blue Economy Applications

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