In aircraft design, the density of a fluid within a divergence duct can be calculated using the ideal gas law, which relates the density of a gas to its pressure, temperature, and gas constant. The formula is as follows:
- 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)