Weak Turbulent Theory In The Modelling of Wind-generated Sea Waves
Abstract
Results of numerical solutions for kinetic equation for wind waves are presented. The experiments are based on algorithm by Resio for calculation of "collision integral" and conventional empirical formulas for generation and dissipation terms used by wind wave models. The key role of nonlinear interactions is demonstrated by the numerical solutions and by direct calculation of the collision integral. Evolution of wind wave spectra is determined by the nonlinear terms mainly and is slightly dependent on de- tails of generation and dissipation of wind waves. Tendency of solutions to self-similar asymptotics corresponding to the constant flux Kolmogorov's cascades is justified in rather wide range of initial conditions and generation/dissipation rates. Numerical re- sults are related with available experimental facts and their use for wind-wave fore- casting is discussed.
The research was conducted under the U.S. Army Corps of Engineers, RDT&E pro- gram, grant DACA 42-00-C0044, ONR grant N00014-98-1-0070 and Russian Foun- dation for Basic Research grants N01-05-64603, N01-05-64464.- Publication:
-
EGS General Assembly Conference Abstracts
- Pub Date:
- 2002
- Bibcode:
- 2002EGSGA..27..812B