Sedov–Taylor blast wave in spherical geometry at t = 0.1. The blast is initialized slightly off the polar axis (at x = 0.1, z = 1). Left panel: slice of the pressure field through y = 0. The dashed white line represents the polar axis of the domain, which is regularized automatically by IDEFIX. Right panel: pressure distribution as a function of the distance from the blast center. The inset shows a zoom around the blast shock region.