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Numerical Performance Investigation of an Array of Heaving Wave Power Converters in front of a Vertical Breakwater
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TLDR
In this paper, the numerical prediction of the performance characteristics of an array of five wave energy heaving converters placed in front of a reflecting vertical breakwater is dealt with, where detailed insight into the system's kinematical and power production characteristics is given.Abstract:
The present paper is dealing with the numerical prediction of the performance characteristics of an array of five wave energy heaving converters placed in front of a reflecting vertical breakwater. At a first stage, the appropriate mechanical system modeling is presented. Detailed insight into the system’s kinematical and power production characteristics is given. In the second part, the analytical method used for the evaluation of the hydrodynamic characteristics of the cylindrical floats moving in front of the breakwater is outlined, supplemented with representative numerical results concerning the hydrodynamic parameters in frequency and in time domain. Hydrodynamic interactions among the floats and the adjacent breakwater are exactly taken into account using the method of images. The third part of the paper is devoted to the numerical integration algorithm for solving the coupled non–liner equations of motion taking into account both linear and non-linear couplings with the power take-off mechanism.read more
Citations
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Journal ArticleDOI
Experimental investigation on hydrodynamic performance of a breakwater-integrated WEC system
TL;DR: In this paper, an integrated breakwater-WEC system, which comprises of an array of heaving Oscillating Buoy Wave Energy Converters (OBWECs) attached at the weather side of a fixed breakwater, is proposed.
Journal ArticleDOI
Experimental investigation of breakwater-type WEC composed of both stationary and floating pontoons
Zhao Xuanlie,Dezhi Ning +1 more
TL;DR: In this article, a two-pontoon system with different draft ratios d1/d2 (where d1 and d2 are the draft of the front pontoon and rear pontoon) is proposed to improve the energy conversion performance of the original single pontoon breakwater-type WEC system.
Dissertation
On the configuration of arrays of floating wave energy converters
TL;DR: In this paper, the authors investigated the effects of irregular seas on array interactions and found that arrays optimised specifically in irregular seas exhibited differences in net power output equivalent to over half that produced from the same number of devices in isolation, although the effects weakened when the same arrays were subjected to irregular sea states.
Journal ArticleDOI
Time domain prediction of power absorption from ocean waves with wave energy converter arrays
TL;DR: In this article, the effects of the separation distances between array system and heading angles on energy absorption in both sway and heave modes are studied by the support of numerical simulations which show sway mode has wider bandwidth than heave mode for energy absorption.
Journal ArticleDOI
Hydrodynamic Performance of an Array of Wave Energy Converters Integrated with a Pontoon-Type Breakwater
TL;DR: In this article, a hybrid WEC system, comprising a linear array (medium farm) of oscillating buoy-type WECs attached to the weather side of a fixed-type floating pontoon as the base structure is proposed.
References
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Journal ArticleDOI
Handbook of Mathematical Functions
Book
Finite Element Procedures
TL;DR: The Finite Element Method as mentioned in this paper is a method for linear analysis in solid and structural mechanics, and it has been used in many applications, such as heat transfer, field problems, and Incompressible Fluid Flows.
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The applied dynamics of ocean surface waves
TL;DR: In this article, the authors present selected theoretical topics on ocean wave dynamics, including basic principles and applications in coastal and offshore engineering, all from a deterministic point of view, and the bulk of the material deals with the linearized theory.
Book
Sea Loads on Ships and Offshore Structures
TL;DR: In this paper, linear-wave induced motions and loads on floating structures were modeled as Second-order nonlinear problems. But the authors did not consider the effects of the wind and current on the floating structures.
The impulse response function and ship motions
TL;DR: In this article, two new representations of the usual equations of motion for an oscillating ship are given, one makes use of the impulse response function and depends only upon the system being linear.