Validation of Simulated Wave Energy Converter Responses to Focused Waves for CCP-WSI Blind Test Series 2

Validation of Simulated Wave Energy Converter Responses to Focused Waves for CCP-WSI Blind Test Series 2 PDF Author: Jennifer van Rij
Publisher:
ISBN:
Category : Computational fluid dynamics
Languages : en
Pages : 10

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Validation of Simulated Wave Energy Converter Responses to Focused Waves for CCP-WSI Blind Test Series 2

Validation of Simulated Wave Energy Converter Responses to Focused Waves for CCP-WSI Blind Test Series 2 PDF Author: Jennifer van Rij
Publisher:
ISBN:
Category : Computational fluid dynamics
Languages : en
Pages : 10

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Validation of Simulated Wave Energy Converter Responses to Focused Waves for CCP-WSI Blind Test Series 2 :.

Validation of Simulated Wave Energy Converter Responses to Focused Waves for CCP-WSI Blind Test Series 2 :. PDF Author: Jennifer Van Rij
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Preliminary Verification and Validation of WEC-Sim, an Open-source Wave Energy Converter Design Tool

Preliminary Verification and Validation of WEC-Sim, an Open-source Wave Energy Converter Design Tool PDF Author: Kelley Ruehl
Publisher:
ISBN:
Category : Ocean energy resources
Languages : en
Pages : 9

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Book Description
To promote and support the wave energy industry, a wave energy converter (WEC) design tool, WEC-Sim, is being developed by Sandia National Laboratories and the National Renewable Energy Laboratory. In this paper, the WEC-Sim code is used to model a point absorber WEC designed by the U.S. Department of Energy's reference model project. Preliminary verification was performed by comparing results of the WEC-Sim simulation through a code-to-code comparison, utilizing the commercial codes ANSYS-AQWA, WaveDyn, and OrcaFlex. A preliminary validation of the code was also performed by comparing WEC-Sim simulation results to experimental wave tank tests.

WEC-SIM Phase 1 Validation Testing -- Numerical Modeling of Experiments: Preprint

WEC-SIM Phase 1 Validation Testing -- Numerical Modeling of Experiments: Preprint PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The Wave Energy Converter Simulator (WEC-Sim) is an open-source code jointly developed by Sandia National Laboratories and the National Renewable Energy Laboratory. It is used to model wave energy converters subjected to operational and extreme waves. In order for the WEC-Sim code to be beneficial to the wave energy community, code verification and physical model validation is necessary. This paper describes numerical modeling of the wave tank testing for the 1:33-scale experimental testing of the floating oscillating surge wave energy converter. The comparison between WEC-Sim and the Phase 1 experimental data set serves as code validation. This paper is a follow-up to the WEC-Sim paper on experimental testing, and describes the WEC-Sim numerical simulations for the floating oscillating surge wave energy converter.

WEC3: Wave Energy Converter Code Comparison Project: Preprint

WEC3: Wave Energy Converter Code Comparison Project: Preprint PDF Author:
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ISBN:
Category :
Languages : en
Pages : 0

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This paper describes the recently launched Wave Energy Converter Code Comparison (WEC3) project and present preliminary results from this effort. The objectives of WEC3 are to verify and validate numerical modelling tools that have been developed specifically to simulate wave energy conversion devices and to inform the upcoming IEA OES Annex VI Ocean Energy Modelling Verification and Validation project. WEC3 is divided into two phases. Phase 1 consists of a code-to-code verification and Phase II entails code-to-experiment validation. WEC3 focuses on mid-fidelity codes that simulate WECs using time-domain multibody dynamics methods to model device motions and hydrodynamic coefficients to model hydrodynamic forces. Consequently, high-fidelity numerical modelling tools, such as Navier-Stokes computational fluid dynamics simulation, and simple frequency domain modelling tools were not included in the WEC3 project.

Application of the Most Likely Extreme Response Method for Wave Energy Converters

Application of the Most Likely Extreme Response Method for Wave Energy Converters PDF Author:
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ISBN:
Category :
Languages : en
Pages :

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Extreme loads are often a key cost driver for wave energy converters (WECs). As an alternative to exhaustive Monte Carlo or long-term simulations, the most likely extreme response (MLER) method allows mid- and high-fidelity simulations to be used more efficiently in evaluating WEC response to events at the edges of the design envelope, and is therefore applicable to system design analysis. The study discussed in this paper applies the MLER method to investigate the maximum heave, pitch, and surge force of a point absorber WEC. Most likely extreme waves were obtained from a set of wave statistics data based on spectral analysis and the response amplitude operators (RAOs) of the floating body; the RAOs were computed from a simple radiation-and-diffraction-theory-based numerical model. A weakly nonlinear numerical method and a computational fluid dynamics (CFD) method were then applied to compute the short-term response to the MLER wave. Effects of nonlinear wave and floating body interaction on the WEC under the anticipated 100-year waves were examined by comparing the results from the linearly superimposed RAOs, the weakly nonlinear model, and CFD simulations. Overall, the MLER method was successfully applied. In particular, when coupled to a high-fidelity CFD analysis, the nonlinear fluid dynamics can be readily captured.

Application of the Most Likely Extreme Response Method for Wave Energy Converters

Application of the Most Likely Extreme Response Method for Wave Energy Converters PDF Author: Eliot Quon
Publisher:
ISBN:
Category : Computational fluid dynamics
Languages : en
Pages : 11

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2.1.1.1.401 - Wave Energy Converter Modeling

2.1.1.1.401 - Wave Energy Converter Modeling PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The Wave Energy Converter (WEC) Modeling Project began in 2013 with the aim of driving innovation and advancing the state of the wave energy industry by developing publicly available, easy to use software that's customizable to meet end user needs. This project is primarily focused on development of open source software for numerical design and analysis of wave energy converters (WEC), and it also supports international collaboration on standards (IEC TC 114), code verification and validation (IEA OES Task 10) and a competition (WECCCOMP).

Wave Energy Power Take-Off Validation with a Hydraulicly Actuated Rotary Dynamometer and a Bidirectional High-Power DC Supply: Preprint

Wave Energy Power Take-Off Validation with a Hydraulicly Actuated Rotary Dynamometer and a Bidirectional High-Power DC Supply: Preprint PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
There are many organizations working towards the commercialization of wave energy converter technologies and are advancing their designs through the technology readiness levels (TRLs). A critical step before the field deployment of prototype wave energy converters is the validation of the subsystems and components that are contained in the wave energy converter through laboratory testing and performance characterization. In 2021, the National Renewable Energy Laboratory (NREL) developed and demonstrated a system for testing power takeoffs (PTO) with a low-speed, high-torque dynamometer and a grid-tied high-power DC power source and sink before field deployment. The hydraulic dynamometer allows for the simulation of PTO actuation from wave motion and is capable of a wide range of wave periods and heights which are represented as various speeds and torques from the dynamometer. The high-power bidirectional power supply allows for hardware in the loop and controller in the loop testing to be conducted on WEC power electronics. This presentation was made to describe the methods used by NREL research staff to test all components and sub-systems in the PTO of a novel wave energy converter before field deployment.

Modelling and Optimization of Wave Energy Converters

Modelling and Optimization of Wave Energy Converters PDF Author: Dezhi Ning
Publisher:
ISBN: 9781032057408
Category :
Languages : en
Pages : 0

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Book Description
Wave energy offers a promising renewable energy source. This guide presents numerical modelling and optimisation methods for the development of wave energy converter technologies, from principles to applications. It covers oscillating water column technologies, theoretical wave power absorption, heaving point absorbers in single and multi-mode degrees of freedom, and the relatively hitherto unexplored topic of wave energy harvesting farms. It can be used as a specialist student textbook as well as a reference book for the design of wave energy harvesting systems, across a broad range of disciplines, including renewable energy, marine engineering, infrastructure engineering, hydrodynamics, ocean science, and mechatronics engineering. The Open Access version of this book, available at https://www.routledge.com/ has been made available under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license.