What is the difference between supersonic and subsonic?

Subsonic refers to anything moving slower than the speed of sound, while supersonic refers to things moving faster than the speed of sound.

Also question is, what is sonic flow?

Choked flow is a compressible flow effect. The parameter that becomes "choked" or "limited" is the fluid velocity. Choked flow is a limiting condition where the mass flow will not increase with a further decrease in the downstream pressure environment while upstream pressure is fixed.

What is meant by supersonic and subsonic flow?

Subsonic Flow: When the fluid velocity is lower than the acoustic speed (M<1) then the fluid flow is called as subsonic. Highly unstable and mixed subsonic and supersonic flows are the main features of this regime. Sonic flow: When flow Mach number is 1 it is called sonic flow.

What is the speed of subsonic?

Subsonic ammunition is ammunition designed to operate at speeds below the speed of sound, which at standard conditions is 343.2 m/s (1,126 ft/s). This avoids the supersonic shockwave or "crack" of a supersonic bullet, which, particularly for suppressed firearms, influences the loudness of the shot.

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