Ptandtl-Glaiert singularity is often mistakenly attached with breaking of sound barrier or a sonic boom, but in-fact Ptandtl-Glaiert singularity has more to do with rapid change in air pressure and layer of water droplets then with sonic boom. The phenomenon not yet been well studied by researchers and scientists, but most of the time they refer it as a “vapor cone or shock collar.
The Prandtl–Glauert singularity is the position at which a rapid change in air pressure takes place, commonly acknowledged as the reason of the noticeable condensation of water droplets in the atmosphere that frequently surrounds a fighter plane traveling at transonic speeds.
A new photograph of Raptor F-22 taken for the deck of the aircraft carrier USS John C. Stennis during an exercise in the Alaska regain shows this phenomenon visually. The first shock collar ever to be photographed was when Apollo 11 landed on the moon in 1969.
The following picture shows the condensing of water droplets on a transonic speed shapes a cone or a wave just behid the plane is known as Ptandtl-Glaiert singularity.
The first plan ever to break the sound barrier was “X-1” and was flown by Capt. Charles E. Yeagerin on 14 October 1947 over the Muroc airfield. The aircraft was propelled by single rocket engine.
Prandtl Glauert Singularity
Prandtl Glauert Singularity
Prandtl Glauert Singularity
Prandtl Glauert Singularity
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