Spatial distributions of the flow speed u₂, magnetic field strength B₂, and number density n₂ downstream of the shock at several moments of time. The left column is for model 1 and the right column for model 2. The coordinate x marks the distance from the shock, which is used for considerations of the CR acceleration. We note that the horizontal axes are in the log scale. This is necessary to describe equally well the variations on both small and large scales relative to the shock position, which are probed by particles with momenta spanning several decades. The shock is located on the left of each plot, at x/R = 0. The SNR center is on the right, at the point with lg(x/R) = 0.