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Numerical Modeling of the Effects of Wave Energy Converter Characteristics on Nearshore Wave Conditions

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Author :
Release : 2015
Genre :
Kind : eBook
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Book Synopsis Numerical Modeling of the Effects of Wave Energy Converter Characteristics on Nearshore Wave Conditions by :

Download or read book Numerical Modeling of the Effects of Wave Energy Converter Characteristics on Nearshore Wave Conditions written by . This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: Modeled nearshore wave propagation was investigated downstream of simulated wave energy converters (WECs) to evaluate overall near- and far-field effects of WEC arrays. Model sensitivity to WEC characteristics and WEC array deployment scenarios was evaluated using a modified version of an industry standard wave model, Simulating WAves Nearshore (SWAN), which allows the incorporation of device-specific WEC characteristics to specify obstacle transmission. The sensitivity study illustrated that WEC device type and subsequently its size directly resulted in wave height variations in the lee of the WEC array. Wave heights decreased up to 30% between modeled scenarios with and without WECs for large arrays (100 devices) of relatively sizable devices (26 m in diameter) with peak power generation near to the modeled incident wave height. Other WEC types resulted in less than 15% differences in modeled wave height with and without WECs, with lesser influence for WECs less than 10 m in diameter. Wave directions and periods were largely insensitive to changes in parameters. Furthermore, additional model parameterization and analysis are required to fully explore the model sensitivity of peak wave period and mean wave direction to the varying of the parameters.

Numerical Modelling of Wave Energy Converters

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Author :
Release : 2016-06-14
Genre : Technology & Engineering
Kind : eBook
Book Rating : 111/5 ( reviews)

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Book Synopsis Numerical Modelling of Wave Energy Converters by : Matt Folley

Download or read book Numerical Modelling of Wave Energy Converters written by Matt Folley. This book was released on 2016-06-14. Available in PDF, EPUB and Kindle. Book excerpt: Numerical Modelling of Wave Energy Converters: State-of-the Art Techniques for Single WEC and Converter Arrays presents all the information and techniques required for the numerical modelling of a wave energy converter together with a comparative review of the different available techniques. The authors provide clear details on the subject and guidance on its use for WEC design, covering topics such as boundary element methods, frequency domain models, spectral domain models, time domain models, non linear potential flow models, CFD models, semi analytical models, phase resolving wave propagation models, phase averaging wave propagation models, parametric design and control optimization, mean annual energy yield, hydrodynamic loads assessment, and environmental impact assessment. Each chapter starts by defining the fundamental principles underlying the numerical modelling technique and finishes with a discussion of the technique's limitations and a summary of the main points in the chapter. The contents of the chapters are not limited to a description of the mathematics, but also include details and discussion of the current available tools, examples available in the literature, and verification, validation, and computational requirements. In this way, the key points of each modelling technique can be identified without having to get deeply involved in the mathematical representation that is at the core of each chapter. The book is separated into four parts. The first two parts deal with modelling single wave energy converters; the third part considers the modelling of arrays; and the final part looks at the application of the different modelling techniques to the four most common uses of numerical models. It is ideal for graduate engineers and scientists interested in numerical modelling of wave energy converters, and decision-makers who must review different modelling techniques and assess their suitability and output. - Consolidates in one volume information and techniques for the numerical modelling of wave energy converters and converter arrays, which has, up until now, been spread around multiple academic journals and conference proceedings making it difficult to access - Presents a comparative review of the different numerical modelling techniques applied to wave energy converters, discussing their limitations, current available tools, examples, and verification, validation, and computational requirements - Includes practical examples and simulations available for download at the book's companion website - Identifies key points of each modelling technique without getting deeply involved in the mathematical representation

Investigation of Wave Energy Converter Effects on Near-shore Wave Fields

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Author :
Release : 2014
Genre :
Kind : eBook
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Book Synopsis Investigation of Wave Energy Converter Effects on Near-shore Wave Fields by :

Download or read book Investigation of Wave Energy Converter Effects on Near-shore Wave Fields written by . This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt: The numerical model, SWAN (Simulating WAves Nearshore), was used to simulate wave conditions in Kaneohe Bay, HI in order to determine the effects of wave energy converter (WEC) devices on the propagation of waves into shore. A nested SWAN model was validated then used to evaluate a range of initial wave conditions: significant wave heights (H s), peak periods (T p), and mean wave directions (MWD) . Differences between wave height s in the presence and absence of WEC device s were assessed at locations in shore of the WEC array. The maximum decrease in wave height due to the WEC s was predicted to be approximately 6% at 5 m and 10 m water depths. Th is occurred for model initiation parameters of H s = 3 m (for 5 m water depth) or 4 m (10 m water depth), T p = 10 s, and MWD = 330deg . Subsequently, bottom orbital velocities were found to decrease by about 6%.

Wave and Tidal Energy

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Author :
Release : 2018-07-23
Genre : Science
Kind : eBook
Book Rating : 441/5 ( reviews)

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Book Synopsis Wave and Tidal Energy by : Deborah Greaves

Download or read book Wave and Tidal Energy written by Deborah Greaves. This book was released on 2018-07-23. Available in PDF, EPUB and Kindle. Book excerpt: Eine umfassende Publikation zu sämtlichen Aspekten der Wellen- und Gezeitenenergie. Wave and Tidal Energy gibt einen ausführlichen Überblick über die Entwicklung erneuerbarer Energie aus dem Meer, bezieht sich auf die neueste Forschung und Erfahrungen aus Anlagentests. Das Buch verfolgt zwei Ziele, zum einen vermittelt es Einsteigern in das Fachgebiet eine Überblick über die Wellen- und Gezeitenenergie, zum anderen ist es ein Referenzwerk für komplexere Studien und die Praxis. Es vermittelt Detailwissen zu wichtigen Themen wie Ressourcencharakterisierung, Technologie für Wellen- und Gezeitenanlagen, Stromversorgungssysteme, numerische und physikalische Modellierung, Umwelteffekte und Politik. Zusätzlich enthält es eine aktuelle Übersicht über Entwicklungen in der ganzen Welt sowie Fallstudien zu ausgewählten Projekten. Hauptmerkmale: - Ausführliches Referenzwerk zu allen Aspekten der interdisziplinären Fachrichten Wellen- und Gezeitenenergie. - Greift auf die neuesten Forschungsergebnisse und die Erfahrung führender Experten in der numerischen und laborgestützten Modellierung zurück. - Gibt einen Überblick über regionale Entwicklungen in aller Welt, repräsentative Projekte werden in Fallstudien vorgestellt. Wave and Tidal Energy ist ein wertvolles Referenzwerk für eine breite Leserschaft, von Studenten der Ingenieurwissenschaften und technischen Managern über politische Entscheidungsträger bis hin zu Studienabsolventen und Forschern.

Numerical Modeling of Waves in the Nearshore Zone with Permeable Structures

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Author :
Release : 1995
Genre : Ocean waves
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Book Synopsis Numerical Modeling of Waves in the Nearshore Zone with Permeable Structures by : Santiago Alfageme

Download or read book Numerical Modeling of Waves in the Nearshore Zone with Permeable Structures written by Santiago Alfageme. This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt:

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