Relation between the coefficient of accretion, mass ratio, and upstream Mach number—﹩{\mathrm{log}}_{10}{C}_{{\rm{a}}}({q}_{{\rm{r}}},{ \mathcal M })﹩ for (Γ, γ) = (5/3, 5/3) flows. The red circles represent the ﹩{\mathrm{log}}_{10}{C}_{{\rm{a}}}﹩ results obtained from the hydrodynamic simulations with q_r and ﹩{{ \mathcal M }}_{\infty }﹩ parameters. The three-dimensional surface shows the best-fitting second-order polynomial relation of ﹩{\mathrm{log}}_{10}{C}_{{\rm{a}}}﹩ in terms of ﹩({q}_{{\rm{r}}},{{ \mathcal M }}_{\infty })﹩. (An interactive version of this figure is available.)

An interactive version of this figure is available in the online journal.