Differential pressure testers are used to compare pressures at two different points within a system and are not associated with velocity measurements. The output of a differential pressure tester is typically in pressure units (e.g., pascals, psi) and is not directly related to velocity.
- V is the velocity of the air entering the engine (in meters per second, m/s).
- 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 air enters (in square meters, m²).