Mass flow refers to the movement or transfer of mass (matter) through a specific point or area within a given period of time.
- ṁ is the mass flow rate (measured in kg/s or other mass units per unit of time).
- ρ is the density of the fluid (measured in kg/m³).
- Vn is the velocity of the fluid (measured in m/s).
- A is the cross-sectional area through which the fluid is flowing (measured in m²).