The Prandtl-Glauert factor () is a mathematical factor used in aerodynamics to account for compressibility effects when an object is moving at speeds close to the speed of sound (in the transonic regime). It is primarily used in subsonic and transonic aerodynamic calculations to approximate the effects of compressibility.
- Prandtl-Glauert factor (𝜆)
- Freestream Mach number (M∞)