| Title: |
Intermittency of gravity wave turbulence on the surface of an infinitely deep fluid: directional effects |
| Authors: |
Kirezci, Cagil; Skvortsov, Alexei T.; Sgarioto, Daniel; Babanin, Alexander V. |
| Source: |
Journal of Fluid Mechanics ; volume 999 ; ISSN 0022-1120 1469-7645 |
| Publisher Information: |
Cambridge University Press (CUP) |
| Publication Year: |
2024 |
| Description: |
This study investigates the influence of surface wave characteristics, specifically wave steepness and directional spreading, on intermittency in deep-water gravity wave turbulence through long-term numerical simulations of three-dimensional potential fully nonlinear periodic gravity waves. We conducted this investigation by estimating the scaling exponent of the surface elevation under different sea state conditions. With our numerical methods, we were able to evaluate the scaling exponents of the structure-function up to 12th order. The observed increased intermittency in directionally narrower sea states and in higher steepness conditions aligns with known effects of quasi-resonant wave–wave interactions and wave breaking. Comparative analyses reveal that both the conventional She–Leveque model and the multifractal models, also used to represent intermittency in wave turbulence of a different nature, exhibit a strong correlation in this study. This observation underscores the universality of intermittency phenomena within wave turbulence. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1017/jfm.2024.835 |
| Availability: |
https://doi.org/10.1017/jfm.2024.835; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022112024008358 |
| Rights: |
http://creativecommons.org/licenses/by/4.0 |
| Accession Number: |
edsbas.60BAED59 |
| Database: |
BASE |