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Burgers equation on a sphere

Thomas Müller
In this video you can see the numerical solution of a burgers type equation with a fluxfunction, going to the right on the upper hemisphere and to the left on the lower hemissphere. The numerical scheme is a finite volume scheme on a triangular mesh on the sphere.

Lax-Wendroff scheme

Dietmar Kröner
In this video you can see the exact solution (red) and the numerical solution (green) of the burgers equation, obtained by the Lax-Wendroff scheme, with respect to initial data, which are equal to 0.2 and equal to -0.1 for x<0 and x>0 respectively. The grey line shows a numerical solution for a scheme with limiter. The numerical solution (green) of this scheme is strongly oscillating.

Lax-Friedrichs scheme

Dietmar Kröner
In this video you can see the exact solution (red) and the numerical solution (green) of the burgers equation, obtained by the Lax-Friedrichs scheme, with respect to initial data, which are equal to 0.2 and equal to -0.1 for x<0 and x>0 respectively. The grey line shows a numerical solution for a scheme with limiter.

Engquist-Osher scheme

Dietmar Kröner
In this video you can see the exact solution (red) and the numerical solution (green) of the burgers equation, obtained by the Engquist-Osher-scheme, with respect to initial data, which are equal to 0.2 and equal to -0.1 for x<0 and x>0 respectively. The grey line shows a numerical solution for a scheme with limiter.

Forward facing step 2D

Robert Klöfkorn
The underlying physical experiment is a Mach 3 flow, coming from the left, through a tube with a forward facing step in 2D. In this video you can see the numerical solution of the compressible, timedependent Euler equations in 2D. The numerical scheme is a finite volume scheme on a dynamically, locally refined, irregular mesh.

Forward facing step 3D

Robert Klöfkorn
The underying physical experiment is a Mach 3 flow, coming from the left, through a tube with a forward facing step in 3D. In this video you can see the numerical solution of the compressible, timedependent Euler equations in 3D. The numerical scheme is a finite volume scheme on a dynamically, locally refined, irregular mesh. The computation have been done on a parallel computer. One single color indicates the domain for one processor. Due to...

Godunov scheme for Burgers equation in 1D

Dietmar Kröner
In this video you can see the exact solution (red) and the numerical solution (green) of the burgers equation, obtained by the Godunov-scheme, with respect to initial data, which are equal to 0.2 and equal to -0.1 for x<0 and x>0 respectively.

Dam break in 3D

Christoph Gersbacher
The underlying physical experiment consists of a lake with a surface on two different levels, which are seperated by a dam. Now we take away the dam and the water from the higher level will flow to the lower level. The results, shown in the movie, are based on a numerical scheme for the shallow water equations.

Two phase flow with phase transition (Navier-Stokes-Kroteweg model)

Dennis Diehl
The underlying physical experiment consists of an ensemble of bubbles of vapor in a fluid. Since they are not in equilibrium they start to move. For the numerical simulation we have used the Navier-Stokes-Korteweg model, which is similar to the compressible Navier-Stokes-equations. The numerical scheme is a discontinuous Galerkin scheme of higher order (up to order 4). The mesh is unstructured and locally refined along the dynamic interfaces.

Fluid structure interaction 1

Eberhard Bänsch & Olga Goncharova
The underlying physical experiment consists of an incompressible flow through an elastic pipe. For the simulation of the flow we use an incompressible Navier-Stokes solver and for the elastic structure a wave type equation on the surface of a cylinder. They are coupled via the pressure on the elastic structure and the timedependent domain for the flow solver.

Fluid structure interaction 2

Eberhard Bänsch & Olga Goncharova
The underlying physical experiment consists of an incompressible flow through an elastic pipe. For the simulation of the flow we use an incompressible Navier-Stokes solver and for the elastic structure a wave type equation on the surface of a cylinder. They are coupled via the pressure on the elastic structure and the timedependent domain for the flow solver.

Book Reviews: Volume 12

Unknown

From Boom to Bust: a Post-Celtic Tiger analysis of the Norms, Values and Roles of Irish Financial Journalists

Fahy, Declan; O'Brien, Mark And Poti, Valerio

Zum Gedenken an Erwin Panofsky (1892–1968)

Eckart Krause & Rainer Nicolaysen
Eine wichtige Form des historischen Gedenkens ist seit dem 80. Jubiläum der Universität Hamburg vor zehn Jahren die Benennung der restaurierten Hörsäle im universitären Hauptgebäude, der „ESA 1“, nach den Opfern von Rassismus, Intoleranz und Inhumanität im „Dritten Reich“.
Auf die beiden größten, A und B, die 1999 die Namen des Philosophen Ernst Cassirer und der Germanistin Agathe Lasch erhalten hatten, folgten im Jahr darauf C (Erwin Panofsky), im April 2005 M (Emil Artin) und...

Erinnerungskulturen

Christoph Cornelißen & Zentrum Für Zeithistorische Forschung Potsdam
Docupedia-Zeitgeschichte

Authentizität

Achim Saupe & Zentrum Für Zeithistorische Forschung Potsdam
Docupedia-Zeitgeschichte

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