BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Jiří Mikyška (Faculty of Nuclear Sciences and Physical Engineer
 ing\, Czech Tech. University)
DTSTART:20221017T134000Z
DTEND:20221017T151000Z
DTSTAMP:20260405T174521Z
UID:NSCM/79
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NSCM/79/">An
  alternative model of multicomponent diffusion based on a combination of t
 he Maxwell-Stefan theory and continuum mechanics.</a>\nby Jiří Mikyška 
 (Faculty of Nuclear Sciences and Physical Engineering\, Czech Tech. Univer
 sity) as part of Nečas Seminar on Continuum Mechanics\n\nLecture held in 
 Room K3\,  Faculty of Mathematics and Physics\, Charles University\, Sokol
 ovská 83  Prague 8..\n\nAbstract\nI will present a theory of multicompone
 nt mixtures that do not employ any splitting of component fluxes\ninto con
 vective and diffusive parts. Instead\, momentum balance is formulated indi
 vidually for each\ncomponent in which both 1) viscous friction within a co
 mponent\, and 2) momentum exchange among different\ncomponents\, are taken
  into account. While viscous friction is described using the Newtonian str
 ess\ntensor\, the Maxwell-Stefan theory is used to describe the momentum e
 xchange among different components.\nWhen the viscosity is neglected\, the
  model of an ideal mixture of ideal gases leads to a hyperbolic system of\
 nconservation laws. For the non-ideal mixtures\, we obtain the first-order
  system in a non-conservative form.\nA simplified version of the model is 
 discretized using a combination of the finite volume method and the\nmixed
 -hybrid finite element method. Numerical examples are provided to show the
  typical behavior of the\nsolution of the model equations.\n
LOCATION:https://researchseminars.org/talk/NSCM/79/
END:VEVENT
END:VCALENDAR