Download 1 - 연세대학교

연세대학교 응용해석 및 계산센터 세미나
Partial Differential Equations
and Applied Mathematics Seminar
Title
Mathematical modeling of
strongly nonlinear internal long wave motions
Speaker
Wooyoung Choi
Affiliation
Dept. of Mathematical Sciences,
New Jersey Institute of Technology, USA
Date
May 31th, Tues., 4:00~ 5:00 Pm
Location
#420, ASTC, Yonsei University
Abstract
Highly nonlinear wave phenomena are ubiquitous in the ocean ,
including packets of large amplitude long internal waves in
density-stratified coastal oceans. These waves whose amplitudes
often exceed 100 m are typically generated by the interaction of
stratified tidal flows with bottom topographies and their wave
amplitudes often exceed 100 m. Previous attempts to model such
waves with the weakly nonlinear asymptotic models, including the
well-known Korteweg-de Vries (KdV) equation, have led to poor
quantitative agreement with laboratory and field observations. In
this talk, I will introduce recent efforts to develop strongly
nonlinear asymptotic models and describe their solitary wave
solutions in comparison with the fully nonlinear Euler equations
and laboratory experiments. In addition, surface expressions
associated the internal wave motions observed on satellite images
will be discussed.