BEGIN:VCALENDAR
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PRODID:researchseminars.org
CALSCALE:GREGORIAN
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BEGIN:VEVENT
SUMMARY:David Lannes
DTSTART:20200415T140000Z
DTEND:20200415T150000Z
DTSTAMP:20260404T111108Z
UID:WOW/1
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/1
 /">The Boussinesq equations with a freely floating object </a>\nby David L
 annes as part of Waves in One World (WOW) series\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/WOW/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Katie Oliveras
DTSTART:20200415T150000Z
DTEND:20200415T160000Z
DTSTAMP:20260404T111108Z
UID:WOW/2
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/2
 /">Conservation Laws for Water Waves</a>\nby Katie Oliveras as part of Wav
 es in One World (WOW) series\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/WOW/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:David Lannes
DTSTART:20200422T140000Z
DTEND:20200422T150000Z
DTSTAMP:20260404T111108Z
UID:WOW/3
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/3
 /">The Boussinesq equations with a freely floating object</a>\nby David La
 nnes as part of Waves in One World (WOW) series\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/WOW/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Katie Oliveras
DTSTART:20200422T150000Z
DTEND:20200422T160000Z
DTSTAMP:20260404T111108Z
UID:WOW/4
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/4
 /">Conservation Laws for Water Waves</a>\nby Katie Oliveras as part of Wav
 es in One World (WOW) series\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/WOW/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:John Carter
DTSTART:20200429T140000Z
DTEND:20200429T150000Z
DTSTAMP:20260404T111108Z
UID:WOW/5
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/5
 /">Generalizations of the Whitham equation</a>\nby John Carter as part of 
 Waves in One World (WOW) series\n\n\nAbstract\nIn this talk I will present
  results from comparisons between a variety of bidirectional Whitham equat
 ions and experimental results.  Additionally\, I will present a generaliza
 tion of the Whitham equation that allows waves to travel in both horizonta
 l directions and nonflat bathymetry.\n
LOCATION:https://stable.researchseminars.org/talk/WOW/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thibault Congy
DTSTART:20200429T150000Z
DTEND:20200429T160000Z
DTSTAMP:20260404T111108Z
UID:WOW/6
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/6
 /">Bidirectional soliton gas</a>\nby Thibault Congy as part of Waves in On
 e World (WOW) series\n\n\nAbstract\nThe soliton structure plays a fundamen
 tal role in many physical systems due to its fundamental feature: its shap
 e remains unchanged after the collision with another soliton in the case o
 f integrable dynamics. Such particle-like behaviour has been at the origin
  of a new mathematical object: the soliton gas\, consisting of an incohere
 nt collection of solitons for which phases (positions) and spectral parame
 ters (e.g. amplitudes) are randomly distributed. The study of soliton gase
 s involves the description of the gas dynamics as well as the correspondin
 g modulation of the nonlinear wave field statistics\, which makes the soli
 ton gas a particularly interesting embodiment of the particle-wave duality
  of solitons.\n\nMotivated by the recent realisation of bidirectional soli
 ton gases in a shallow water experiment\, we investigate two integrable mo
 dels of bidirectional wave: the nonlinear Schrödinger equation and the Ka
 up-Boussinesq equation. Using a physical approach\, we derive the so-calle
 d kinetic equation that governs the gas dynamics for the two integrable sy
 stems. We notably show that the structure of the kinetic equation depends 
 on the "isotropic" or the "anisotropic" nature of the solitons interaction
 .  Additionally we derive expressions for statistical moments of the physi
 cal fields (e.g. mean water level). As an illustration of the theory\, we 
 solve numerically the gas shock tube problem describing the collision of t
 wo "cold" soliton gases.  An excellent agreement with exact solutions of t
 he kinetic equations is observed.\n
LOCATION:https://stable.researchseminars.org/talk/WOW/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Onno Bokhove (University of Leeds)
DTSTART:20200506T140000Z
DTEND:20200506T150000Z
DTSTAMP:20260404T111108Z
UID:WOW/7
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/7
 /">Coupling dispersive water waves to shallow-water bores on a beach</a>\n
 by Onno Bokhove (University of Leeds) as part of Waves in One World (WOW) 
 series\n\n\nAbstract\nPotential-flow water waves are coupled to a shallow-
 water model\, including hydraulic bores\, at a beach to deal with unidirec
 tional wave propagation in a finite domain. Such a set-up also matches wav
 etank conditions used for testing and validation of model structures such 
 as ships in maritime engineering. Note that shorter\, non-breaking and dis
 persive waves in deeper water are thus damped by wave breaking at the beac
 h. A suitable coupling point is chosen in sufficiently shallow water\, whe
 re the two models are coupled by using variational techniques. Numerically
 \, a space-time variational approach is followed for the potential-flow wa
 ter waves coupled to a classical finite-volume method for the shallow-wate
 r model. The entire approach has been validated numerically against bespok
 e wavetank experiments undertaken at the TU Delft. The main work was perfo
 rmed by Floriane Gidel [1]\, in collaboration with Tim Bunnik and Geert Ka
 psenberg (MARIN\, Maritime Research Institute Netherlands)\, Mark Kelmanso
 n and the speaker (Leeds). \n\n[1] F. Gidel 2018: Variational water-wave m
 odels and pyramidal freak waves. PhD thesis. University of Leeds: http://e
 theses.whiterose.ac.uk/21730/ \n\n[2] O. Bokhove 2021: Variational water-w
 ave modeling: from deep water to beaches. Book chapter. Mathematics of Mar
 ine Modeling. Springer. Eds. Deleersnijder\, Heemink and Schuttelaars.\n
LOCATION:https://stable.researchseminars.org/talk/WOW/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Davide Proment (University of East Anglia)
DTSTART:20200506T150000Z
DTEND:20200506T160000Z
DTSTAMP:20260404T111108Z
UID:WOW/8
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/8
 /">Sound emission and irreversible dynamics during vortex reconnections in
  quantum fluids</a>\nby Davide Proment (University of East Anglia) as part
  of Waves in One World (WOW) series\n\n\nAbstract\nWe study the irreversib
 le dynamics of vortex reconnections in quantum fluids within the framework
  of the Gross–Pitaevskii model\, a nonlinear Schroedinger-type equation.
  We quantitatively explain the time-asymmetry characterising the reconnect
 ion process by relating it to the emission of localised directional sound 
 pulse. Our theoretical results shed new light on energy transfer and turbu
 lence in fluid mechanics and have the prospect of being tested in quantum 
 fluid experiments.\n
LOCATION:https://stable.researchseminars.org/talk/WOW/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Miguel Onorato (Universita` di Torino)
DTSTART:20200513T140000Z
DTEND:20200513T150000Z
DTSTAMP:20260404T111108Z
UID:WOW/9
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/9
 /">Thermalization and conduction in a one dimensional lattice</a>\nby Migu
 el Onorato (Universita` di Torino) as part of Waves in One World (WOW) ser
 ies\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/WOW/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Olga Trichtchenko (Western University Canada)
DTSTART:20200513T150000Z
DTEND:20200513T160000Z
DTSTAMP:20260404T111108Z
UID:WOW/10
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/1
 0/">Stability of solutions to Hamiltonian PDEs via polynomials</a>\nby Olg
 a Trichtchenko (Western University Canada) as part of Waves in One World (
 WOW) series\n\n\nAbstract\nIn this talk\, we will show how to reduce the p
 roblem of analysing stability of solutions to nonlinear Hamiltonian PDEs\,
  to that of finding roots of polynomials. Using the Kawahara equation as a
 n example\, it will be shown how to obtain explicit expressions for region
 s of stability for different parameters in the equation. Finally\, we will
  illustrate how this can approach can easily be extended to more general P
 DEs.\n
LOCATION:https://stable.researchseminars.org/talk/WOW/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Erik Wahlen (Lund University)
DTSTART:20200520T140000Z
DTEND:20200520T150000Z
DTSTAMP:20260404T111108Z
UID:WOW/11
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WOW/1
 1/">Large-amplitude solitary waves for the Whitham equation</a>\nby Erik W
 ahlen (Lund University) as part of Waves in One World (WOW) series\n\n\nAb
 stract\nIn the 1960’s G. B. Whitham suggested a non-local version of the
  KdV equation as a model for water waves. Unlike the KdV equation it is no
 t integrable\, but it has certain other advantages. In particular\, it has
  the same dispersion relation as the full water wave problem and it allows
  for wave breaking. The existence of a highest\, cusped periodic wave was 
 recently proved using global bifurcation theory. I will discuss the same p
 roblem for solitary waves. This presents several new challenges.\n\nJoint 
 work with T. Truong (Lund) and M. Wheeler (Bath).\n
LOCATION:https://stable.researchseminars.org/talk/WOW/11/
END:VEVENT
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