English

Selection criteria for the compressible Euler equations: numerical study

Mathematical Physics 2026-08-03 v1 Numerical Analysis

Abstract

We numerically investigate selection criteria for dissipative weak solutions of the compressible Euler equations. Using the Kelvin-Helmholtz problem as a benchmark, we compare four standard numerical schemes - the viscous finite volume (VFV) method, the discrete velocity Boltzmann finite volume (DVBFV) method, the Runge-Kutta discontinuous Galerkin (RKDG) method, and the discontinuous Galerkin spectral element method (DGSEM), and demonstrate that each may converge to a different dissipative weak solution. We evaluate these solutions with respect to several selection criteria based on entropy production, total energy, and energy defect, and examine the sensitivity of selection functionals to the numerical diffusion inherent in each scheme.

Cite

@article{arxiv.2608.02862,
  title  = {Selection criteria for the compressible Euler equations: numerical study},
  author = {Megala Anandan and Bahulayan Chalil Aravind and Mária Lukáčová-Medvid'ová and S. V. Raghurama Rao and Kedar Shridhar Wagh and Changsheng Yu and Jiahui Zhang},
  journal= {arXiv preprint arXiv:2608.02862},
  year   = {2026}
}