MS Thesis R. Hager - Hawaii National Marine Renewable Energy ...

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5.6 Data ProcessingFigure 5. 26 Wave Gage Labview Set-upApply a Fast Fourier Transformation to the time-series force data in order to assess theamplitude of the excitation force. The Matlab code used to apply the Fast FourierTransformation is given in Appendix B.5.7 Experimental ValidationExperimental validation should be carried out; Froude scaling the numerical model of Kooand Kim (2005) may be used for this. A Lewis form hull body has been constructed, as seenin Figure 5.27. The Lewis form hull has also been modeled in AQWA, as seen in Figure 5.28.The experimental body has been constructed of acrylic rectangles epoxied together. PermaOxy is used to prevent seepage. The corners are rounded to reduce turbulence. The bodyhas a width of 5 7 / 8 ”, length of 7 3 / 8 ”, and draft of 3”.104
Figure 5. 27 Experimental Lewis Form Hull BodyFigure 5. 28 Numerical Model of Lewis Form HullAgain no data have been collected. It is recommended for future students to carry out theexperimental validation before proceeding with the proposed experiment. Future studentsshould begin with the wave conditions given in Table 5.1.105
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Geometric Effects on Maximum Power
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ABSTRACTNumerical simulations are c
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3.7 Absorbed Wave Power ...........
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LIST OF FIGURESFigurePageFigure 1.1
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NOMENCLATUREA=incident wave amplitu
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1.2 Advantages of Wave EnergyAdvant
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for various projects. Included in t
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pollution would occur from hydrauli
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Figure 1. 7 Average Annual Wave Pow
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Backer (2009) numerically and exper
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CHAPTER 2. WAVE ENERGY CONVERSION D
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2.3 OrientationOrientation is defin
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Figure 2.4 Oscillating Water Column
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2.5 Reference PointMeans of reactio
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Linear GeneratorTurbineRotary Gener
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Table 2. 1 WEC ClassificationsDevic
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33P.T.O.MooringReferencePointOperat
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CHAPTER 3. THEORY AND GOVERNING EQU
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F(x,z,t) z 0DFDtFt u F 0 0 (4
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in ni(13)on S for i=1, 3in( r n)i3
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I iAg e ekz i( kx t)(30)cosh( k(z
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where ijkis the permutation symbol.
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Mw k ieitS( D I) ijkrinjdS(46)3.3.3
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Due to Kirchhoff decomposition, rec
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TE KE PE 20L Asin(kx) 1 2(61)dV d
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P I Iw dS (70)tnSIf the column
Page 54 and 55: 221 2P gA C(77)max g2 3.8 Maximum
Page 56 and 57: 4.2 AQWA Modeling ProcedureThe user
Page 58 and 59: : Local data has changed, and the c
Page 60 and 61: Figure 4. 5 Drawing in Design Modul
Page 62 and 63: 12. Delete all lines inside the cur
Page 64 and 65: 22. Edit the details of the slice u
Page 66 and 67: Figure 4. 15 Details of the Part7.
Page 68 and 69: Figure 4. 17 Details of the Mesh4.2
Page 70 and 71: Figure 4. 21 Detials of the Wave Di
Page 72 and 73: 5. Highlight Diffraction + Froude-K
Page 74 and 75: Table 4.1 Body Dimensions for Numer
Page 76 and 77: concavity from concave down to conc
Page 78 and 79: Figure 4. 29 Maximum Power Absorpti
Page 80 and 81: Table 4. 3 Numerical ResultsBodyNo.
Page 82 and 83: BodyNo.Bodyλ atT=2.1λ atT=1.0λ a
Page 84 and 85: WAVEFigure 5. 1 Body Faces Wave Mak
Page 86 and 87: The body connects to the aluminum p
Page 88 and 89: also allowed for flexibility in cre
Page 90 and 91: AB1 23 4 5 6 7CD8 9 10 11EFigure 5.
Page 92 and 93: and minimum voltage range of the DA
Page 94 and 95: Figure 5. 11 Deleting a Step from L
Page 96 and 97: Figure 5. 14 Recording Options, Sig
Page 98 and 99: Figure 5. 17 Right-mouse Click on t
Page 100 and 101: Zero-OffsetThe Zero-Offset step rem
Page 102 and 103: Figure 5. 24 Filter Step Set-up, Co
Page 106 and 107: 5.8 Experimental DiscussionAs menti
Page 108 and 109: 5.8.3 Suggestions for Future Resear
Page 110 and 111: 110ikxxRekddzkgkn )cosh())(cosh(,
Page 112 and 113: Proof M ij and B ij are Symmetric T
Page 114 and 115: BIBILIOGRAPHYANSYS. (n.d.). ANSYS A
Page 116: Trust, C. (2011). Capital, Operatin
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