The velocity (V) of a CFM (CFM International) engine inlet represents the speed of the air entering the engine. This velocity is a critical parameter for understanding the engine’s performance and aerodynamics. In the context of aircraft design, the formula for velocity is as follows:
– V is the velocity of air entering the engine (in meters per second, m/s).
– ṁ (pronounced “m-dot”) is the mass flow rate of air entering the engine (in kilograms per second, kg/s).
– A is the cross-sectional area of the engine inlet (in square meters, m²).
– ρ (rho) is the air density (in kilograms per cubic meter, kg/m³).