Modelling rogue waves in 1D wave trains with the JONSWAP spectrum, by means of the High Order Spectral Method and a fully nonlinear numerical model

2021 ◽  
pp. 108715
Author(s):  
Cagil Kirezci ◽  
Alexander V. Babanin ◽  
Dmitry V. Chalikov
Keyword(s):  
Numerical Model ◽  
Spectral Method ◽  
Rogue Waves ◽  
High Order ◽  
Fully Nonlinear ◽  
Wave Trains ◽  
High Order Spectral Method ◽  
Jonswap Spectrum ◽  
Nonlinear Numerical Model

Predicting the occurrence of rogue waves in the presence of opposing currents with a high-order spectral method

2021 ◽  
Vol 6 (6) ◽  
Author(s):  
Guillaume Ducrozet ◽  
Maryam Abdolahpour ◽  
Filippo Nelli ◽  
Alessandro Toffoli
Keyword(s):  
Spectral Method ◽  
Rogue Waves ◽  
High Order ◽  
High Order Spectral Method

scholarly journals On the influence of wind on extreme wave events

2007 ◽  
Vol 7 (1) ◽  
pp. 123-128 ◽  
Author(s):  
J. Touboul
Keyword(s):  
Numerical Analysis ◽  
Spectral Method ◽  
Modulational Instability ◽  
Rogue Waves ◽  
High Order ◽  
Instability Wave ◽  
Extreme Wave ◽  
Wave Fields ◽  
The Impact ◽  
High Order Spectral Method

Abstract. This work studies the impact of wind on extreme wave events, by means of numerical analysis. A High Order Spectral Method (HOSM) is used to generate freak, or rogue waves, on the basis of modulational instability. Wave fields considered here are chosen to be unstable to two kinds of perturbations. The evolution of components during the propagation of the wave fields is presented. Their evolution under the action of wind, modeled through Jeffreys' sheltering mechanism, is investigated and compared to the results without wind. It is found that wind sustains rogue waves. The perturbation most influenced by wind is not necessarily the most unstable.

scholarly journals HOS-ocean: Open-source solver for nonlinear waves in open ocean based on High-Order Spectral method

2016 ◽  
Vol 203 ◽  
pp. 245-254 ◽  
Author(s):  
Guillaume Ducrozet ◽  
Félicien Bonnefoy ◽  
David Le Touzé ◽  
Pierre Ferrant
Keyword(s):  
Open Source ◽  
Spectral Method ◽  
Nonlinear Waves ◽  
Open Ocean ◽  
High Order ◽  
High Order Spectral Method

Re-study on recurrence period of Stokes wave train with high order spectral method

2011 ◽  
Vol 25 (4) ◽  
pp. 679-686 ◽  
Author(s):  
Ai-feng Tao ◽  
Jin-hai Zheng ◽  
Mee Soe Mee ◽  
Bo-tao Chen
Keyword(s):  
Spectral Method ◽  
Wave Train ◽  
High Order ◽  
Stokes Wave ◽  
Recurrence Period ◽  
High Order Spectral Method

Systematic Experimental Validation of High-Order Spectral Method for Deterministic Wave Prediction

2019 ◽  
Author(s):  
Marco Klein ◽  
Matthias Dudek ◽  
Günther F. Clauss ◽  
Norbert Hoffmann ◽  
Jasper Behrendt ◽  
...  
Keyword(s):  
Spectral Method ◽  
Experimental Validation ◽  
Linear Method ◽  
Wave Spectrum ◽  
High Order ◽  
Linear Wave ◽  
Short Term ◽  
Wave Prediction ◽  
Non Linear ◽  
High Order Spectral Method

Abstract The applicability of the High-Order Spectral Method (HOSM) as a very fast non-linear method for deterministic short-term wave prediction is discussed within this paper. The focus lies on the systematic experimental validation of the HOSM in order to identify and evaluate possible areas of application as well as limitations of use. For this purpose, irregular sea states with varying parameters such as wave steepness and underlying wave spectrum are addressed by numerical simulations and model tests in the controlled environment of a seakeeping basin. In addition, the influence of the propagation distance is discussed. For the evaluation of the accuracy of the HOSM prediction, the surface similarity parameter (SSP) is utilized, allowing a quantitative validation of the results. The results obtained are compared to linear wave prediction to discuss the pros and cons of a non-linear deterministic short-term wave prediction. In conclusion, this paper shows that the non-linear deterministic wave prediction based on HOSM leads to a substantial improvement of the prediction quality for moderate and steep irregular wave trains in terms of individual waves and prediction distance.

Extreme wave statistics of random waves propagating over a 3D varying bathymetry

2021 ◽  
Author(s):  
Christopher Lawrence ◽  
Karsten Trulsen ◽  
Odin Gramstad
Keyword(s):  
Velocity Field ◽  
Spectral Method ◽  
Local Maximum ◽  
High Order ◽  
Surface Elevation ◽  
Irregular Waves ◽  
Extreme Wave ◽  
Boussinesq Model ◽  
Wave Statistics ◽  
High Order Spectral Method

<p>Non-uniform bathymetry may modify the wave statistics for both surface elevation and velocity field.<br>Laboratory evidence reported by Trulsen et al. (2012) shows that for a relatively long unidirectional<br>waves propagating over a sloping bottom, from deep to shallower water, there can be a local maximum<br>of kurtosis and skewness in surface elevation near the edge of the shallower side of the slope. Recent<br>laboratory experiments of long-crested irregular waves propagating over a shoal by Trulsen et al. (2020)<br>reported that the kurtosis of horizontal velocity field have different behaviour from the kurtosis of surface<br>elevation where the local maximum of kurtosis in surface elevation and horizontal velocity occur at<br>different location.<br>In present work, we utilize numerical simulation to study the evolution of skewness and kurtosis for<br>irregular waves propagating over a three-dimensional varying bathymetry. Numerical simulations are<br>based on High Order Spectral Method (HOSM) for variable depth as described in Gouin et al. (2017)<br>for wave evolution and Variational Boussinesq model (VBM) as described in Lawrence et al. (2021) for<br>velocity field calculation.</p><p> </p><p>References</p><p>GOUIN, M., DUCROZET, G. & FERRANT, P. 2017 Propagation of 3D nonlinear waves over an elliptical<br>mound with a High-Order Spectral method. Eur. J. Mech. B Fluids 63, 9–24.<br>LAWRENCE, C., GRAMSTAD, O. & TRULSEN, K. 2021 Variational Boussinesq model for kinematics<br>calculation of surface gravity waves over bathymetry. Wave Motion 100, 102665.<br>TRULSEN, K., RAUSTØL, A., JORDE, S. & RYE, L. 2020 Extreme wave statistics of long-crested<br>irregular waves over a shoal. J. Fluid Mech. 882, R2.<br>TRULSEN, K., ZENG, H. & GRAMSTAD, O. 2012 Laboratory evidence of freak waves provoked by<br>non-uniform bathymetry. Phys. Fluids 24, 097101.</p>

A high-order spectral method for nonlinear wave–body interactions

1992 ◽  
Vol 245 (-1) ◽  
pp. 115 ◽  
Author(s):  
Yuming Liu ◽  
Douglas G. Dommermuth ◽  
Dick K. P. Yue
Keyword(s):  
Spectral Method ◽  
Nonlinear Wave ◽  
High Order ◽  
High Order Spectral Method
Sign in / Sign up

Export Citation Format

Share Document