In aircraft design, the cross-sectional area of the airframe system does have a formula, as it can vary widely depending on the specific component or part of the airframe you are considering. The cross-sectional area typically represents the area perpendicular to the direction of airflow through or around the airframe.
- ṁ is the mass flow rate in kilograms per second (kg/s).
- ρ is the air density in kilograms per cubic meter (kg/m³).
- A is the cross-sectional area through which Airframe System (in square meters, m²).
- V is the velocity of the Airframe System (in meters per second, m/s).