Abstract
For the Burgers equation as an example of a hyperbolic conservation law, we have considered in our previous paper Castaño Díez et al. (2008) [8] a weak formulation with a stabilization for handling discontinuities, commonly called a viscosity approach. Numerically, this was realized by locally introducing degrees of freedom around the discontinuities by means of an adaptive wavelet method in an a posteriori fashion.In the present paper, we apply this method to systems of conservation laws, specifically, Euler’s equations for gas dynamics. Moreover, as the viscosity stabilization produces some Gibbs phenomena, we discuss different post-processing techniques known from data and image processing together with a number of numerical comparisons.
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