E3S Web of Conf.
Volume 402, 2023International Scientific Siberian Transport Forum - TransSiberia 2023
|Number of page(s)
|Solar Energy Conversion, Sustainable Energy and Smart Grid
|19 July 2023
Features of using the smoothed instantaneous wave energy history (SIWEH) to analyze the group structure of sea waves
Marine Hydrophysical Institute RAS, 299011 Sevastopol, Russian Federation
* Corresponding author: firstname.lastname@example.org
The methodological features of determining the characteristics of wave groups of sea surface waves based on the function smoothed instantaneous waves through energy (SIWEH) are analyzed. The analysis is carried out by numerical simulation based on an analytical model of the group structure of waves. It is shown that when the grouping of sea waves is investigated using the SIWEH function, it is advisable to calculate the Groupiness Factors of Height (GFH) in two stages. At the first stage, transform the SIWEH function into a wave envelope, and at the second stage, calculate the GFH using a known envelope. The previously proposed direct calculation of GFH by the SIWEH function leads to significant errors. The effect of the change in the cutoff frequency of the Bartlett filter at a fixed frequency of dominant waves on the calculated values of GFH is investigated. It is shown that when the cutoff frequency changes ±30%, the GFH changes do not exceed 5%.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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