In aircraft design and engineering, the “outlet mass flow rate” refers to the rate at which air or another fluid exits an aircraft’s engine or a specific component of the engine, such as a compressor or combustion chamber. It is a fundamental parameter used to characterize the flow of air or gases through the engine.
Formula for Outlet Mass Flow Rate:Outlet mass flow rate is typically measured in kilograms per second (kg/s) in the International System of Units (SI). The formula for calculating mass flow rate is the same as for the inlet mass flow rate:
- Density (ρ) is the density of the fluid exiting the engine, typically measured in kilograms per cubic meter (kg/m³).
- Velocity (V) is the speed at which the fluid exits the engine, measured in meters per second (m/s).
- Cross-Sectional Area (A) represents the area through which the fluid flows, measured in square meters (m²).