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Nonlinear Wave Transformation Using Modified Dispersive Shoaling Models
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This study is to compare and validate two models for random wave transformation with experimental data. Both models are based on frequency domain KdV equation. First model is a modified version of KdV equation which was derived to provide shoaling and dispersion relation of each frequency mode. Second model is a dispersive nonlinear shoaling model including shallow water limits and dissipation terms. Results expected are as follows 1) Second model is expected to overestimate the results in higher frequencies but can predict satisfactorily close in the lower and intermediate frequency zones of the energy spectrums. 2) First model is expected to predict the transformation better than that of the second because of the fully dispersive nature. Energy spectrum plots from models are expected to match close to the experimental plots in the lower frequencies and the first model is expected to be much closer to the experimental data than that of the second model. The validation plots of both the models are expected to be as close as they can be in the Infra gravity and Swell regions of the spectrum; the second model is expected to do better in the Sea wave region of the spectrum.
Penugonda, Mourya (2018). Nonlinear Wave Transformation Using Modified Dispersive Shoaling Models. Master's thesis, Texas A & M University. Available electronically from