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B Causes for producing Sound while crossing sound barrier

  1. Sep 8, 2015 #1
    What causes to produce sound (like boom) when crossing a sound barrier.

    With regards
    Nilesh.
     
  2. jcsd
  3. Sep 8, 2015 #2

    BvU

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    Did you google sonic boom ? or "sonic boom explained" ?
     
  4. Sep 8, 2015 #3
    The "sonic boom" , the sound produced ,when reached at Mach 1 Speed.

    With regards
    Nilesh
     
  5. Sep 8, 2015 #4

    BvU

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    Yes I know. But did it help you ?
     
  6. Sep 8, 2015 #5
    No.
     
  7. Sep 8, 2015 #6

    BvU

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    Usually waves emanating from a source reach you one by one. Can be noisy enough, as with airplanes, especially jet planes. In a shock wave they all reach you at the same time.
     
  8. Sep 8, 2015 #7

    Drakkith

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  9. Sep 8, 2015 #8
  10. Sep 8, 2015 #9
    Is it possible to watch the cone of sock wave when we collide two bullets having colour at mach 1 speed.

    With regards

    Nilesh
     
  11. Sep 8, 2015 #10

    boneh3ad

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    I am not 100% sure what you are hoping to watch, but yes, you could record two bullets colliding and visualize the shock waves that result provided you have the right equipment.
     
  12. Sep 8, 2015 #11
    Dear Sir,

    the cone produced by the sock wave. The cone will carry some colour particle with them. and it will be two cone in opposite direction may be.

    With regards

    Nilesh.
     
  13. Sep 8, 2015 #12

    Drakkith

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    I'm sorry, but I don't understand what you're saying. What is a 'colour particle' and what does it have to do with shock waves?
     
  14. Sep 8, 2015 #13

    russ_watters

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    Since the point of impact is not moving, the shock wave produced by the impact will be spherical, not conical.
     
  15. Sep 9, 2015 #14

    boneh3ad

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    That still doesn't make a whole lot of sense to me but the answer is still yes. You could visualize it quite easily with schlieren or shadowgraph techniques.

    Are you interested in the roughly conical shock produced by supersonic bullets or the potential shock created by the collision?
     
  16. Sep 9, 2015 #15
    Dear Sir,

    Both of them, becouse they will collied at the time when they reached supersonic speed (Mack 1), Time of collied and supersonic speed will be same.

    With reagards

    Nilesh
     
  17. Sep 9, 2015 #16

    BvU

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    Pretty dangerous experiment if you ask me.
     
  18. Sep 9, 2015 #17
    Dear Sir,

    As per your statement its seems that this type of experiment was not done before. Could we calculate the power generated by this impact or the risk involved in, doing this experiment. May be the whole senario will simulated by computer. What will happen, it is a ? mark.

    With regards

    Nilesh.
     
  19. Sep 9, 2015 #18

    Drakkith

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    Nothing special will happen. The bullets will collide and be flattened or torn apart from the impact. Total energy involved is just the sum of the kinetic energy of the two bullets. Were you expecting something different to happen?
     
  20. Sep 9, 2015 #19

    boneh3ad

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    A supersonic bullet will start out supersonic and gradually slow after that, so the idea that you could smash two bullets together just as they accelerate through Mach 1 doesn't really make sense in a conventional sense.

    Further, a bullet traveling at exactly Mach 1 is going to have a very weak shock wave attached that would be more difficult to see. It won't likely be the classical conical shock, either, because that won't theoretically exist at Mach 1. Instead you would probably have a series of weak shocks associated with locally supersonic regions in the transonic flow field. Of course that's a moot point because the two bullets would only be going exactly Mach 1 for a tiny fraction of a second as they continue to slow down due to air resistance.
     
  21. Sep 9, 2015 #20
    Ok sir, in case of bullets nothing will happen. If we fire a 1000 kg with the help of a rocket. (rocket to mainten the speed).

    with regards

    Nilesh
     
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