Oberseminar "Aktuelle Themen der Numerik"
Dienstag, 04.11.2014, 14.00 Uhr
Numerical Simulation of the Boltzmann Equation
Prof. Joachim Schöberl (TU Vienna)
In this talk we present a Discontinuous Galerkin method for the Boltzmann equation. The distribution function f is approximated by a shifted Maxwellian times a polynomial in space and momentum, while the test functions are chosen as polynomials. The first property leads to consistency with the Euler limit, while the second property ensures conservation of mass, momentum and energy. The focus is on efficient algorithms for the Boltzmann collision operator. We transform between nodal, hierarchical and polar polynomial bases to reduce the inner integral operator to diagonal form.
Zeit: 14:00 Uhr
Ort: AICES seminar room R 115, Rogowski-Gebäude, Schinkelstr. 2., 52062 Aachen