|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Dispersive Shock Waves
If you have a question about this talk, please contact Nigel Peake.
Dispersive shock waves (DSW’s) are described by a slowly varying one-phase periodic wave train that connects solitons at one edge to linear dispersive waves at the other. DSW ’s are associated with equations which are ‘regularized’ by a small dispersive term. This is different from viscous shock waves (VSW’s) which are characterized by rapid localized changes in the underlying physical quantities. Equations with VSW ’s are regularized by a small viscous term. Recent laboratory experiments in Bose-Einstein condensates and nonlinear optics have demonstrated both single phase DSW and complex-interacting multiphase behavior. Numerical and analytical results explain many of the observed phenomena. If time permits, a reformulation of the water wave equations in terms of a novel nonlocal system will be discussed. Special cases include shallow and deep water asymptotic reductions. Localized waves including two dimensional water wave lumps to the nonlinear water wave equations with sufficient surface tension are numerically obtained.
This talk is part of the Fluid Mechanics (DAMTP) series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsMachine Learning Journal Club Cambridge University Self-Build Society Environment on the Edge
Other talksThe Interpretation of Musical Notation: A Performer’s View Genomic technologies Framing the Austerity Debate Counting the Cost of Drink in Britain, 1830-1918 Flying 300 underwater Planes and other Oil Industry Innovations ‘Triumph of the Real: From The Communist Manifesto to Jason Bourne’