Top: normalized values of velocity, artificial acceleration ﹩{g}_{\mathrm{visc}}﹩, artificial viscous heating ﹩{\epsilon }_{\mathrm{visc}}﹩, and Mach number in the vicinity of the shock. The dashed vertical line marks where the Mach number is unity. Bottom: dependency of the shock morphology on changes in the viscosity parameter l₂. The dots shown for the model with ﹩{l}_{2}\;=﹩ 0.004 denote the location of the MESA grid points at that time. For all these tests, we deposit an energy of 10⁵⁰ erg at a constant power over 1 s.