fiesta.properties.calc_mach_numbers# fiesta.properties.calc_mach_numbers(vel, cs)[source]# Calculates Mach numbers using \(\mathcal{M} = \frac{\sigma_v}{c_\mathrm{s}}\). Parameters: vel (Quantity) – Velocity \(v\). cs (Quantity) – Sounds peed \(c_s\). Returns: mach (Quantity) – Mach number \(\mathcal{M}\) (unitless).