The freestream velocity, often denoted as , refers to the velocity of the fluid (such as air or any other fluid medium) far away from any solid surface or object that might be influencing the flow. In fluid dynamics, it is used as a reference velocity for analyzing the behavior of the fluid around objects or in various flow situations.Ā
- : Freestream velocity (in meters per second, m/s).
- : Specific heat capacity at constant pressure (in joules per kilogram per kelvin, J/(kgĀ·K)).
- : Total temperature (in kelvin, K).
- : Static temperature of the freestream (in kelvin, K).