کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10681772 1014262 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling freak waves from the North Sea
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Modeling freak waves from the North Sea
چکیده انگلیسی
Four freak events registered in the North Sea during a storm are presented and studied. The spatial evolution of the freak waves backward and forward wave propagation is simulated within the framework of the Dysthe equation. The lifetimes and travel distances of the freak waves are determined based on the results of the simulations. The wave evolution predicted by the Dysthe model is compared with the simulations of the nonlinear Schrödinger and kinematical equations. The contributions of the effects of the nonlinear self-focusing (Benjamin-Feir instability) and quasi-linear wave grouping are discovered with the help of the nonlinear Schrödinger approximation and the linear theory. It is found that though the Benjamin-Feir instability is important for the description of freak wave evolution, the significant wave enhancement by itself may be achieved even in the linear approximation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ocean Research - Volume 27, Issue 1, April 2005, Pages 12-22
نویسندگان
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