In aircraft design and engine performance analysis, the density ((\rho)) of the fluid, such as air, within an engine, like the GE J31, is a significant parameter. Density is a measure of how much mass is contained in a given volume of the fluid. The formula for density 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)