A new numerical method for the problem of nonlinear long-short wave interactions

[摘要] (cont.) The investigation of the new method has been conducted for the case of two interacting waves taking into account terms up to M = 2. The results agree very well with HOS for cases of wavelength ratios up to AS/AL = 0.1, as well as for short time evolutions. For cases where either the wavelength ratio is smaller than 0.1, or the run time is significantly larger (t > 10Ts), the new method succeeds in providing results, while prior methods are limited by the appearence of divergent terms proportional to ALkS.

[发布机构] Massachusetts Institute of Technology