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