In aircraft design, the density of an aircraft system is a measure of how tightly packed the substance or component is within that system. The formula for calculating density (ρ) involves the mass (m) and volume (V) of the substance or component and is defined as:
- 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)