Siddhartha Mishra

Arbitrarily high order numerical schemes that converge to entropy measure valued solutions of systems of hyperbolic conservation laws.

Abstract: We start by arguing through numerical examples as to why entropy measure
valued solutions are the appropriate solution concept for systems of conservation laws in
several space dimensions. Two classes of numerical schemes are presented that can be shown to converge
to entropy measure valued solutions. The first class are finite volume schemes based on entropy conservative
fluxes and numerical diffusion operators, using a ENO reconstruction. The second class are space-time shock capturing discontinuous Galerkin (STDG) schemes. The schemes are compared on a set of numerical experiments. The lecture concludes with a discussion of efficient ways to compute measure valued solutions using multi-level Monte Carlo methods,  originally developed for uncertainty quantification in conservation laws.

Published May 3, 2013 9:01 AM - Last modified May 3, 2013 9:01 AM