Old Speed of Sound in Hypersonic Inviscid Flow Formulas

Old speed of sound is the speed of sound before the shock. And is denoted by c_old. Old Speed of Sound is usually measured using the Meter per Second for Speed. Note that the value of Old Speed of Sound is always negative.

Hypersonic Inviscid Flow formulas that make use of Old Speed of Sound

fxDensity before Shock Formation for Expansion WaveGo

fxNew Pressure after Shock Formation, Subtracted to Velocity for Expansion WaveGo

fxRatio of New and Old Temperature for Expansion WavesGo

fxNew Pressure after Shock Formation for Compression WaveGo

fxDensity before Shock Formation for Compression WaveGo

fxRatio of New and Old TemperatureGo

FAQ

What is the Old Speed of Sound?

Old speed of sound is the speed of sound before the shock. Old Speed of Sound is usually measured using the Meter per Second for Speed. Note that the value of Old Speed of Sound is always negative.

Can the Old Speed of Sound be negative?

Yes, the Old Speed of Sound, measured in Speed can be negative.

What unit is used to measure Old Speed of Sound?

Old Speed of Sound 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 Old Speed of Sound can be measured.

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