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giesbec

Marco Bravin (Basque Center for Applied Mathematics) via ZOOM: On some properties for an incompressible, non-viscous in-out flow in a 2D domain

Mittwoch, 04.11.2020 14:15
Mathematik und Informatik

In this talk I will present some recent results on some properties of an in-out flow associated with a perfect two dimensional fluid. In particular I present existence of solutions in different classes of regularity and I will conclude with the study of the asymptotic limit of some shrinking sources and sinks. This work is motivated by a question left open by Judovic in [2]. The system consists of an Euler type system in a bounded domain with some holes where non-homogeneous boundary conditions are prescribed. I will present how to extend some classical existence results in this setting and then I will consider the case when the holes shrink to points. The boundary conditions lead to the creation of some point sources and sinks associated with some vortex points in the limit. Similar type of systems have been already study by Chemetov and Starovoitov in [1], where a different approximation approach was considered. References: [1] Chemetov, N. V., Starovoitov, V. N. (2002). On a Motion of a Perfect Fluid in a Domain with Sources and Sinks. Journal of Mathematical Fluid Mechanics, 4(2), 128-144. [2] Judovi, V. I. A two-dimensional non-stationary problem on the flow of an ideal incompressible fluid through a given region. (Russian) Mat. Sb. (N.S.) 64 (106) 1964 562588.



Angelegt am Donnerstag, 15.10.2020 15:16 von giesbec
Geändert am Freitag, 16.10.2020 16:11 von giesbec
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Kolloquium der angewandten Mathematik
Angewandte Mathematik Münster