2. Bang at the sound barrier?
Hello first of all.
So in physics class, we’re talking about the Doppler effect and the sound barrier.
Now I have a few questions.
1. Does the pilot hear the bang when the sound barrier is broken? I mean, he is flying faster than the sound.
2. If the airplane slows down again, there is another point at which the sound barrier is broken, only this time “from above”. Is there a bang again? If so, who hears it?
Thanks in advance 🙂
(1 votes)
Loading...
there is not a bang when breaking through the sound wall, but as long as the aircraft moves faster than the snall, it pulls conically diie pressure wave behind it, which is perceived at the bottom as a bang. see here http://de.wikipedia.org/wiki/%C3%9Cberschallflug#.C3.9Cber sound bang
What does she just stop? Shouldn’t there be a new superposition of the waves? Don’t the sound waves get the pilots back as soon as he’s slower than the sound? A reasoned answer 🙂 is not that so 😛
So, I’m quite aware that the whole thing works, finally, have physics performance course. It is only a question of why the sound waves do not overlap again as soon as the flyer passes sound speed again. Why isn’t there a “2 knall?” One thing is that answer doesn’t bring me anything.
As you know correctly, you don’t hear an oversonic bang in the plane yourself. He’s pulling like a tow behind the plane. When the aircraft comes back to the speed of sound, this tow simply stops