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The initialization of nonlinear waves using an adjustment scheme

✍ Scribed by Douglas Dommermuth

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
279 KB
Volume
32
Category
Article
ISSN
0165-2125

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✦ Synopsis

A procedure for initializing nonlinear free-surface simulations is developed and validated. Numerical simulations of nonlinear progressive waves are prone to developing spurious high-frequency standing waves unless the flow field is given sufficient time to adjust. An adjustment procedure is developed that allows nonlinear free-surface simulations to be initialized with linear solutions. The adjustment scheme allows the natural development of nonlinear self-wave (locked modes) and wave-wave (free modes) interactions. The implementation of the adjustment procedure is illustrated using a high-order spectral method. Comparisons are made to fully-nonlinear Stokes waves and Schrodinger theory.

πŸ“œ SIMILAR VOLUMES

On an improvement of a nonlinear iterati
On an improvement of a nonlinear iterative scheme for nonlinear wave profile prediction
✍ T.S. Jang; S.H. Kwon; B.J. Kim πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 591 KB

The authors of the present paper present an iterative scheme to calculate the nonlinear wave profiles [Jang, T.S., Kwon, S.H., 2005. Application of nonlinear iteration scheme to the nonlinear water wave problem: Stokian wave. Ocean Engineering, in press]. The nonlinear operator was constructed from