Freestream Velocity in Fundamentals of Inviscid and Incompressible Flow Formulas

Freestream Velocity is defined as at some distance above the boundary the velocity reaches a constant value that is free stream velocity. And is denoted by u_∞. Freestream Velocity is usually measured using the Meter per Second for Speed. Note that the value of Freestream Velocity is always negative.

Fundamentals of Inviscid and Incompressible Flow formulas that make use of Freestream Velocity

fxPressure Coefficient using Velocity RatioGo

fxVelocity at Point on Airfoil for given Pressure Coefficient and Free-Stream VelocityGo

FAQ

What is the Freestream Velocity?

Freestream Velocity is defined as at some distance above the boundary the velocity reaches a constant value that is free stream velocity. Freestream Velocity is usually measured using the Meter per Second for Speed. Note that the value of Freestream Velocity is always negative.

Can the Freestream Velocity be negative?

Yes, the Freestream Velocity, measured in Speed can be negative.

What unit is used to measure Freestream Velocity?

Freestream Velocity is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Freestream Velocity can be measured.

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