Transformation of Water Wave Spectra into Time Series of Surface Elevation
| Autor: | Phelype Haron Oleinik, Gabriel Pereira Tavares, Bianca Neves Machado, Liércio André Isoldi |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
wave spectrum Series (mathematics) Wave spectrum Electromagnetic spectrum Elevation Modelagem de ondas Environmental technology. Sanitary engineering Spectral line wave modelling Computational physics symbols.namesake Fourier transform Transformation (function) fourier transform Wave modelling Wind wave Transformada de Fourier symbols Significant wave height TD1-1066 |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Earth, Vol 2, Iss 59, Pp 997-1005 (2021) Earth; Volume 2; Issue 4; Pages: 997-1005 |
| ISSN: | 2673-4834 |
| DOI: | 10.3390/earth2040059 |
| Popis: | Spectral wave modelling is widely used to simulate large-scale wind–wave processes due to its low computation cost and relatively simpler formulation, in comparison to phase-resolving or hydrodynamic models. However, some applications require a time-domain representation of sea waves. This article proposes a methodology to transform the wave spectrum into a time series of water surface elevation for applications that require a time-domain representation of ocean waves. The proposed method uses a generated phase spectrum and the inverse Fourier transform to turn the wave spectrum into a time series of water surface elevation. The consistency of the methodology is then verified. The results show that it is capable of correctly transforming the wave spectrum, and the significant wave height of the resulting time series is within 5% of that of the input spectrum. |
| Databáze: | OpenAIRE |
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