Mittwoch, 24.10.2018, 17:00-19:00; G03-106 (78 Plätze)
Prof. Dr. Josef Malek
(Charles University, Prague)
''From Navier-Stokes to Complex Fluids''
In the first half of the 19th century Navier and Stokes formulated the equations that describe the flow of water and many other
incompressible liquids under standard conditions. These equations now bear the names of their inventors. A century later Leray developed the
mathematical foundations of the modern theory of the Navier-Stokes equations both for planar and three-dimensional flows. He introduced the
concept of generalized solution to the Cauchy problem and proved its existence for arbitrary (sufficiently regular) data and for an arbitrary
time interval. This concept not only reflects the physical assumptions used when deriving the equations but it also forms the basis for the
construction of powerful numerical methods.
Despite the undeniable success of the Navier-Stokes equations, there are many fluid-like incompressible materials that exhibit phenomena that can
not be described by the Navier-Stokes equations. In order to describe these effects a number of models, which are more complicated than the
Navier-Stokes equations, have been designed, developed, and used in relevant applications. The aim of this lecture is to survey recent developments,
both in the area of theoretical continuum thermodynamics as well as in the field of PDE analysis, which have led to the development of Leray's
programme beyond the Navier-Stokes equations.
Datum: 24.10.2018, Raum: G03-106, Zeit: 17:00 Uhr
Kontakt: Dr. Piotr Minakowski
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