Freestream dynamic pressure is a measure of the kinetic energy per unit volume of a moving fluid. It is often expressed in terms of the freestream Mach number in the context of compressible flow. Dynamic pressure measures the pressure associated with the kinetic energy of a fluid in motion. As the fluid velocity increases, dynamic pressure increases accordingly.Â
- is the dynamic pressure at the freestream or reference point (N/m^2).
- (gamma) is the specific heat ratio (dimensionless).
- is the freestream pressure (in N/m^2).
- is the freestream Mach number (dimensionless).