Co-Design of Marine Energy Converters for Autonomous Underwater Vehicle Docking and Recharging - Test Data and Processing

Description

This dataset contains experimental results from testing the Halona wave energy converter (WEC) in both fixed and floating configurations. This dataset reflects a 1/10th scale omnidirectional spar buoy oscillating water column (OWC) device, designed to improve platform stability for autonomous underwater vehicle (AUV) docking. Tests were conducted at the O.H. Hinsdale Wave Research Laboratory's Directional Wave Basin, replicating field conditions anticipated for a full-scale deployment at Kilo Nalu, Oahu. The experiments included unidirectional and directional wave conditions, spanning regular and irregular waves, with varying power take-off (PTO) damping settings represented by different orifice plates. Data collected include differential pressure across orifice plates, six-degree-of-freedom motion capture, surface elevation, and mooring tension forces, with units clearly labeled and standardized.

Data products include pressure, surface elevation, mooring tension, and PhaseSpace Motion response data, as well as normalized Response Amplitude Operators (RAOs), normalized chamber pressures, and capture efficiencies. Data are provided below in the zip files, with 'RNG' and 'Reg' identifiers for irregular and regular wave tests respectively, and are labelled with alpha values (percentage relating to opening ratio). Comprehensive MATLAB scripts for data analysis and figure generation are included. The tests support validation of OpenFOAM and ProteusDS models. Use of the dataset assumes familiarity with wave energy converter testing, MATLAB software, and standard hydrodynamic modeling practices. Results from this testing are detailed in publications by Ulm, Huang, and Cross (2023, 2024, and 2025). A Post Access Report summarizing the experimental methods and findings is also attached.

Resources

Name Format Description Link
Academic Figure Package HTML Matlab scripts to create readable, color and high contrast figures for publications Open resource
CoefficientAmpPlot.m Unknown Plots the coefficient of amplification for the specified opening ratio Open resource
CoefficientAmpPlotRun.m Unknown Runs the script to plot the coefficient of amplification for the tested fixed article for all orifice plates. Open resource
CoeffPressPlotRun.m Unknown Runs the script to plot the coefficient of pressure for the fixed or floating model Open resource
dataExtract.m Unknown Script that extracts data from the correct trial number based on the input tested conditions. Open resource
Green_Reg_Alpha10_2_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 1.0% in regular waves continued. Open resource
Green_Reg_Alpha10_2.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 1.0% in regular waves continued. Open resource
Green_Reg_Alpha10_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 1.0% in regular waves. Open resource
Green_Reg_Alpha10.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 1.0% in regular waves. Open resource
Green_Reg_Alpha15_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 1.5% in regular waves. Open resource
Green_Reg_Alpha15.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 1.5% in regular waves. Open resource
Green_Reg_Alpha20_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 2.0% in regular waves. Open resource
Green_Reg_Alpha20.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 2.0% in regular waves. Open resource
Green_Reg_Alpha5_2_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 0.5% in regular waves continued. Open resource
Green_Reg_Alpha5_2.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 0.5% in regular waves continued. Open resource
Green_Reg_Alpha5_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 0.5% in regular waves. Open resource
Green_Reg_Alpha5.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 0.5% in regular waves. Open resource
Green_Reg_Alpha7_2_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 0.7% in regular waves continued Open resource
Green_Reg_Alpha7_2.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 0.7% in regular waves continued. Open resource
Green_Reg_Alpha7_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 0.7% in regular waves. Open resource
Green_Reg_Alpha7.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 0.7% in regular waves. Open resource
Green_RNG_Alpha10.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 1.0% in irregular waves. Irregular spectrum is a custom spectrum characteristic of the south shore of Oahu. Open resource
Green_RNG_Alpha15_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 1.5% in irregular waves. Open resource
Green_RNG_Alpha15.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 1.5% in irregular waves. Irregular spectrum is a custom spectrum characteristic of the south shore of Oahu. Open resource
Green_RNG_Alpha5_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 0.5% in irregular waves. Open resource
Green_RNG_Alpha5.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 0.5% in irregular waves. Irregular spectrum is a custom spectrum characteristic of the south shore of Oahu. Open resource
Green_RNG_Alpha7_Motion.zip ZIP PhaseSpace Motion response data for opening ratio 0.7% in irregular waves. Open resource
Green_RNG_Alpha7.zip ZIP Pressure, surface elevation, and mooring tension data archive for opening ratio 0.7% in irregular waves. Irregular spectrum is a custom spectrum characteristic of the south shore of Oahu. Open resource
KNOSpectrum.mat MAT Kilo Nalu Irregular Spectrum used in irregular wave tests. Open resource
NonDim.m Unknown Calculates and plots the extraction efficiency normalized to wave period and wave height. Open resource
NonDimRun.m Unknown Runs the script to plot normalized extraction efficiency for the fixed or floating model Open resource
PeakElevation.m Unknown Uses the findpeaks function to find the peaks of the surface elevation inside the fixed model Open resource
PeakPressure.m Unknown Uses the findpeaks function to find the peak pressure oscillations Open resource
quicklook_UH.m Unknown This can be used to visualize raw data from testing, assuming the correct directory path and folder configuration. Open resource
RAOPlot_AMP.m Unknown Plots the response amplitude operator for the floating model Open resource
RAOsolve.m Unknown Solves for the Response Amplitude Operator of the Floating model motion response Open resource
Roster.csv CSV Roster file linking the trial number to the input wave conditions for dataExtract & TrialFind Open resource
SolveDispersionEquation.m Unknown Solves the dispersion relationship to find wavelength per the input wave period and water depth. Open resource
Post Access Report.pdf PDF The report documents the design, experimental setup, and results from scaled wave tank testing of the Halona wave energy converter, including analysis of motion response, pressure measurements, and capture efficiency under various wave conditions and PTO damping configurations. It also outlines the methodology, instrumentation, facility details, data management practices, and lessons learned during testing. Open resource
Instrument Locations.xls XLS Instrument locations inside the HWRL Directional Basin Open resource
TrialFind.m Unknown Links the desired wave conditions to the trial number. Open resource
Wave Theories.xlsx XLS Wave Theory Data for regular and irregular waves in the HWRL Directional basin Open resource
zeroshift.m Unknown Zero shifts the data Open resource
Publication - Ulm et al 2023 HTML "Experimental Study of a Fixed OWC-Type Wave Energy Converter with a Heave Plate and V-Shaped Channels for Intermediate-Water-Depth Applications". Associated publication discussing fixed model pressure and surface elevation data. Open resource

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