In aircraft design, the density of a control system refers to the mass per unit volume of the substance (often air) flowing through the system. The formula to calculate density (ρ) is given by:
- ρ = Density of the fluid (in kilograms per cubic meter, kg/m³)
- P = Pressure of the fluid (in pascals, Pa)
- R = Specific gas constant for the fluid (in J/(kg·K))
- T = Temperature of the fluid (in kelvin, K)