کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8256337 1533985 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-focusing dynamics of patches of ripples
ترجمه فارسی عنوان
پویایی خود-تمرکز از تکه های موج دار
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
چکیده انگلیسی
The dynamics of focussing of extended patches of nonlinear capillary-gravity waves within the primitive fluid dynamic equations is presented. It is found that, when the envelope has certain properties, the patch focusses initially in accordance to predictions from nonlinear Schrödinger equation, and focussing can concentrate energy to the vicinity of a point or a curve on the fluid surface. After initial focussing, other effects dominate and the patch breaks up into a complex set of localised structures-lumps and breathers-plus dispersive radiation. We perform simulations both in the inviscid regime and for small viscosities. Lastly we discuss throughout the similarities and differences between the dynamics of ripple patches and self-focussing light beams.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica D: Nonlinear Phenomena - Volume 333, 15 October 2016, Pages 235-242
نویسندگان
, ,