Relation between the coefficient of drag, mass ratio, and upstream Mach number—﹩{\mathrm{log}}_{10}{C}_{{\rm{d}}}({q}_{{\rm{r}}},{{ \mathcal M }}_{\infty })﹩ for (Γ, γ) = (5/3, 5/3) flows. The blue circles represent the ﹩{\mathrm{log}}_{10}{C}_{{\rm{d}}}﹩ results obtained from the hydrodynamic simulations with qr and ﹩{{ \mathcal M }}_{\infty }﹩ parameters. The three-dimensional surface shows the best-fitting second-order polynomial relation of ﹩{\mathrm{log}}_{10}{C}_{{\rm{d}}}﹩ 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.