Freestream Velocity in Hypersonic Equivalence Principle and Blast Wave Theory Formulas

The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air. And is denoted by V_∞. Freestream Velocity is usually measured using the Meter per Second for Speed. Note that the value of Freestream Velocity is always negative.

Hypersonic Equivalence Principle and Blast Wave Theory formulas that make use of Freestream Velocity

fxModified Pressure Equation for Cylindrical Blast WaveGo

fxModified Energy for Cylindrical Blast WaveGo

fxEnergy for Blast WaveGo

fxTime Required for Blast WaveGo

fxCoefficient of Drag Equation using Energy Released from Blast WaveGo

FAQ

What is the Freestream Velocity?

The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air. 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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