An efficient focusing model of freak wave generation considering wave reflection effects

Y. Deng, J. Yang, Wenhua Zhao, L. Xiao, X. Li

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

© 2015 Published by Elsevier Ltd. This study investigates the generation of freak waves using a new focusing model that considers the effects of wave reflection. In the developed model, wave spectrum energy is divided into three parts: one for random waves, one for forward transient waves, and one for backward reflected waves. In order to test this model, a numerical wave tank (NWT) is set up and validated through comparison with published experimental results. Numerical simulations are conducted and the simulation results are compared with those of simulations based on Kriebel's focusing model. The comparisons show that the developed model is capable of generating extremely high waves in an accurate and repeatable manner. The primary advantage of the developed model is that both the forward transient waves and the backward reflected waves contain only half the energy of the transient waves in Kriebel's focusing model, making it much better at easing wave breaking. In addition, the numerical simulations indicate that wave reflection could be a possible factor that contributes to the formation of freak waves.
Original languageEnglish
Pages (from-to)125-135
JournalOcean Engineering
Volume105
DOIs
Publication statusPublished - 2015

Fingerprint

Computer simulation

Cite this

@article{28ad5a74de9a46c78d34e976f7e71f5a,
title = "An efficient focusing model of freak wave generation considering wave reflection effects",
abstract = "{\circledC} 2015 Published by Elsevier Ltd. This study investigates the generation of freak waves using a new focusing model that considers the effects of wave reflection. In the developed model, wave spectrum energy is divided into three parts: one for random waves, one for forward transient waves, and one for backward reflected waves. In order to test this model, a numerical wave tank (NWT) is set up and validated through comparison with published experimental results. Numerical simulations are conducted and the simulation results are compared with those of simulations based on Kriebel's focusing model. The comparisons show that the developed model is capable of generating extremely high waves in an accurate and repeatable manner. The primary advantage of the developed model is that both the forward transient waves and the backward reflected waves contain only half the energy of the transient waves in Kriebel's focusing model, making it much better at easing wave breaking. In addition, the numerical simulations indicate that wave reflection could be a possible factor that contributes to the formation of freak waves.",
author = "Y. Deng and J. Yang and Wenhua Zhao and L. Xiao and X. Li",
year = "2015",
doi = "10.1016/j.oceaneng.2015.04.058",
language = "English",
volume = "105",
pages = "125--135",
journal = "Ocean Engineering",
issn = "0029-8018",
publisher = "Pergamon",

}

An efficient focusing model of freak wave generation considering wave reflection effects. / Deng, Y.; Yang, J.; Zhao, Wenhua; Xiao, L.; Li, X.

In: Ocean Engineering, Vol. 105, 2015, p. 125-135.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An efficient focusing model of freak wave generation considering wave reflection effects

AU - Deng, Y.

AU - Yang, J.

AU - Zhao, Wenhua

AU - Xiao, L.

AU - Li, X.

PY - 2015

Y1 - 2015

N2 - © 2015 Published by Elsevier Ltd. This study investigates the generation of freak waves using a new focusing model that considers the effects of wave reflection. In the developed model, wave spectrum energy is divided into three parts: one for random waves, one for forward transient waves, and one for backward reflected waves. In order to test this model, a numerical wave tank (NWT) is set up and validated through comparison with published experimental results. Numerical simulations are conducted and the simulation results are compared with those of simulations based on Kriebel's focusing model. The comparisons show that the developed model is capable of generating extremely high waves in an accurate and repeatable manner. The primary advantage of the developed model is that both the forward transient waves and the backward reflected waves contain only half the energy of the transient waves in Kriebel's focusing model, making it much better at easing wave breaking. In addition, the numerical simulations indicate that wave reflection could be a possible factor that contributes to the formation of freak waves.

AB - © 2015 Published by Elsevier Ltd. This study investigates the generation of freak waves using a new focusing model that considers the effects of wave reflection. In the developed model, wave spectrum energy is divided into three parts: one for random waves, one for forward transient waves, and one for backward reflected waves. In order to test this model, a numerical wave tank (NWT) is set up and validated through comparison with published experimental results. Numerical simulations are conducted and the simulation results are compared with those of simulations based on Kriebel's focusing model. The comparisons show that the developed model is capable of generating extremely high waves in an accurate and repeatable manner. The primary advantage of the developed model is that both the forward transient waves and the backward reflected waves contain only half the energy of the transient waves in Kriebel's focusing model, making it much better at easing wave breaking. In addition, the numerical simulations indicate that wave reflection could be a possible factor that contributes to the formation of freak waves.

U2 - 10.1016/j.oceaneng.2015.04.058

DO - 10.1016/j.oceaneng.2015.04.058

M3 - Article

VL - 105

SP - 125

EP - 135

JO - Ocean Engineering

JF - Ocean Engineering

SN - 0029-8018

ER -