Stability analysis of preconditioned approximations of the Euler equations on unstructured meshes

This paper analyses the stability of a discretisation of the Euler equations on 3D unstructured grids using an edge-based data structure, first-order characteristic smoothing, a block-Jacobi preconditioner, and Runge-Kutta timemarching. This is motivated by multigrid Navier-Stokes calculations in wh...