The mass flow rate of a propeller-driven engine in aircraft design represents the rate at which air is ingested and expelled by the engine to produce thrust. The formula to calculate the mass flow rate of a propeller-driven engine (ṁ_engine) is as follows:
- ṁ_engine = Mass flow rate of the propeller-driven engine (in kilograms per second, kg/s)
- ρ = Density of the air ingested by the engine (in kilograms per cubic meter, kg/m³)
- A = Cross-sectional area of the propeller (in square meters, m²)
- V = Velocity of the air entering the propeller (in meters per second, m/s)