ṁ: This symbol represents the mass flow rate, which is the amount of mass passing through a given cross-sectional area per unit time. It’s typically measured in kilograms per second (kg/s) or other mass/time units.
- Mass flow rate (ṁ) in kg/s
- Density of sonic flow at throat (𝜌*) in kg/m^3
- Velocity of sonic flow at throat (u*) in m/s
- Cross-sectional area of sonic flow at throat (At) in m^2