Numerical study of pressure forcing of wind on dynamically evolving water waves

Yi Liu; Di Yang; Xin Guo; Lian Shen

doi:10.1063/1.3414832

Numerical study of pressure forcing of wind on dynamically evolving water waves

Yi Liu, Di Yang, Xin Guo, Lian Shen

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We simulate the dynamic evolution of nonlinear water waves coupled with wind turbulence. We first investigate simple wave trains to obtain pressure distribution, based on which parameters for wave growth are quantified and their dependence on wave age and wave steepness is shown. We then investigate broadband waves to obtain physical insights to wind forcing for phase-resolved wavefield simulation. It is found that for long wave components, the wave growth parameter can be approximated by the value of the corresponding monochromatic waves; for short waves, stochastic modeling is suggested.

Original language	English (US)
Article number	049004PHF
Pages (from-to)	1-4
Number of pages	4
Journal	Physics of Fluids
Volume	22
Issue number	4
DOIs	https://doi.org/10.1063/1.3414832
State	Published - Apr 2010

Bibliographical note

Funding Information:
The support by the ONR through the Young Investigator award to L.S. is gratefully acknowledged. L.S. also wishes to thank Professor Dick K. P. Yue for helpful discussions.

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10.1063/1.3414832

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abstract = "We simulate the dynamic evolution of nonlinear water waves coupled with wind turbulence. We first investigate simple wave trains to obtain pressure distribution, based on which parameters for wave growth are quantified and their dependence on wave age and wave steepness is shown. We then investigate broadband waves to obtain physical insights to wind forcing for phase-resolved wavefield simulation. It is found that for long wave components, the wave growth parameter can be approximated by the value of the corresponding monochromatic waves; for short waves, stochastic modeling is suggested.",

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AU - Yang, Di

AU - Guo, Xin

AU - Shen, Lian

N1 - Funding Information: The support by the ONR through the Young Investigator award to L.S. is gratefully acknowledged. L.S. also wishes to thank Professor Dick K. P. Yue for helpful discussions.

PY - 2010/4

Y1 - 2010/4

N2 - We simulate the dynamic evolution of nonlinear water waves coupled with wind turbulence. We first investigate simple wave trains to obtain pressure distribution, based on which parameters for wave growth are quantified and their dependence on wave age and wave steepness is shown. We then investigate broadband waves to obtain physical insights to wind forcing for phase-resolved wavefield simulation. It is found that for long wave components, the wave growth parameter can be approximated by the value of the corresponding monochromatic waves; for short waves, stochastic modeling is suggested.

AB - We simulate the dynamic evolution of nonlinear water waves coupled with wind turbulence. We first investigate simple wave trains to obtain pressure distribution, based on which parameters for wave growth are quantified and their dependence on wave age and wave steepness is shown. We then investigate broadband waves to obtain physical insights to wind forcing for phase-resolved wavefield simulation. It is found that for long wave components, the wave growth parameter can be approximated by the value of the corresponding monochromatic waves; for short waves, stochastic modeling is suggested.

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Numerical study of pressure forcing of wind on dynamically evolving water waves

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