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SUMMARY:S.V. Meleshko\, N.P. Moshkin\, A.G. Petrova\, V.V. Pukhnachev
DTSTART:20200603T110000Z
DTEND:20200603T120000Z
DTSTAMP:20260423T024653Z
UID:mmandim/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/mmandim/2/">
 On exact analytical solutions of equations of Maxwell incompressible visco
 elastic medium</a>\nby S.V. Meleshko\, N.P. Moshkin\, A.G. Petrova\, V.V. 
 Pukhnachev as part of Mathematical models and integration methods\n\n\nAbs
 tract\nUnstationary and stationary two-dimensional flows of incompressible
  viscoelastic Maxwell medium with upper\, low and corotational convective 
 derivatives in the theological constitutive law are considered. A class of
  partially invariant solutions is analyzed. Using transition to Lagrangian
  coordinates\, an exact solution of the problem of unsteady flow near free
 -stagnation point was constructed. For the model with Johnson-Segalman con
 vected derivative and special linear dependence of the vertical component 
 of velocity\, the general solution was derived. Analysis of the analytical
  unstationary solution provides a new class of stationary solutions. The s
 olutions found comprise both already known as well as substantially new so
 lutions. Nonsingular solutions of the stress tensor at the critical point 
 and bounded at infinity are constructed. Exact analytical formulae for the
  stress tensor with the Weissenberg number Wi=1/2 are obtained.\n\nZoom li
 nk: https://us04web.zoom.us/j/75235003172?pwd=MXpVbGlLN0ZGQ1NpTVErV2xvLzFB
 dz09\n
LOCATION:https://researchseminars.org/talk/mmandim/2/
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