avião a passar a barreira do som

Bem "Almost breaking the sound barrier", significa "quase...", mas, de facto, parece que o "estampido" da barreira do som é mesmo, ou quase, ultrapassado!
 
Unreal disse:
Mas não deixa de ser interessante


edit:Ah!!Estive quase lá!
Pé Leve, se ouvires bem o video, ouvirás no fundo a dizer que ele não chegou a passar a barreira do som ;)
Clique para expandir...
Exacto, ouvi agora! Mas não deixa de ser interessante aquele anel, que, segundo julgo, fica para trás quando a barreira é mesmo batida!:)
 
Pé Leve disse:
Exacto, ouvi agora! Mas não deixa de ser interessante aquele anel, que, segundo julgo, fica para trás quando a barreira é mesmo batida!
Clique para expandir...

Já agora para se perceber melhor o fenomeno


Aviões a passarem a barreira de som

SoundBarrier.gif



Ondas de choque da barreira de som

soundbarrier1.gif

soundbarrier.gif
gtmach.gif



Sound is made up of molecules of air that move. They push together and gather together to form sound waves. Sound waves travel at the speed of about 750 mph at sea level. When a plane travels the speed of sound the air waves gather together and compress the air in front of the plane to keep it from moving forward. This compression causes a shock wave to form in front of the plane.
In order to travel faster than the speed of sound the plane needs to be able to break through the shock wave. When the airplane moves through the waves, it is makes the sound waves spread out and this creates a loud noise or sonic boom . The sonic boom is caused by a sudden change in the air pressure. When the plane travels faster than sound it is traveling at supersonic speed. A plane traveling at the speed of sound is traveling at Mach 1 or about 760 MPH. Mach 2 is twice the speed of sound.




http://www.ueet.nasa.gov/StudentSite/dynamicsofflight.html
 
Excalibur disse:
Já agora para se perceber melhor o fenomeno


Aviões a passarem a barreira de som

SoundBarrier.gif



Ondas de choque da barreira de som

soundbarrier1.gif

soundbarrier.gif
gtmach.gif



Sound is made up of molecules of air that move. They push together and gather together to form sound waves. Sound waves travel at the speed of about 750 mph at sea level. When a plane travels the speed of sound the air waves gather together and compress the air in front of the plane to keep it from moving forward. This compression causes a shock wave to form in front of the plane.
In order to travel faster than the speed of sound the plane needs to be able to break through the shock wave. When the airplane moves through the waves, it is makes the sound waves spread out and this creates a loud noise or sonic boom . The sonic boom is caused by a sudden change in the air pressure. When the plane travels faster than sound it is traveling at supersonic speed. A plane traveling at the speed of sound is traveling at Mach 1 or about 760 MPH. Mach 2 is twice the speed of sound.




http://www.ueet.nasa.gov/StudentSite/dynamicsofflight.html
Clique para expandir...

Excelente explicação!
 
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