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Great Shot of Ares 1-X Breaking Sound Barrier
Chosun Ilbo ^
| 11/02/09
Posted on 11/02/2009 9:15:12 AM PST by TigerLikesRooster
TOPICS: Arts/Photography; Science
KEYWORDS: ares1x; pullmyfinger; soundbarrier
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The cylindrical ring around the rocket is the sonic boom generated by the rocket.
To: TigerLikesRooster
“... sonic boom generated by the rocket....” A noise you can see? Please explain. This is fascinating.
2
posted on
11/02/2009 9:19:08 AM PST
by
La Lydia
To: TigerLikesRooster
3
posted on
11/02/2009 9:19:19 AM PST
by
GreenAccord
(Bacon Akbar!)
To: TigerLikesRooster
The cylindrical ring around the rocket is the sonic boom generated by the rocket. Not exactly.... The air cools as the shock wave passes through it -- the thermodynamics are not all that different from what happens in your air conditioner. What you're seeing is the condensation of water in the cooler air behind the shock wave.
4
posted on
11/02/2009 9:19:52 AM PST
by
r9etb
To: La Lydia
The shock wave from breaking sound barrier is visible to ultra-slow motion camera. The shock wave also make loud noise.
5
posted on
11/02/2009 9:21:34 AM PST
by
TigerLikesRooster
(LUV DIC -- L,U,V-shaped recession, Depression, Inflation, Collapse)
To: TigerLikesRooster
BTW .. Did you see that two of the booster parachutes malfunctioned Causing damage to the skirt ??
6
posted on
11/02/2009 9:25:02 AM PST
by
Robe
(Rome did not create a great empire by talking, they did it by killing all those who opposed them)
To: GreenAccord
7
posted on
11/02/2009 9:25:07 AM PST
by
GreenAccord
(Bacon Akbar!)
To: TigerLikesRooster
How many seconds did it take from launch to breaking the sound barrier?
8
posted on
11/02/2009 9:25:47 AM PST
by
La Lydia
To: TigerLikesRooster
Don’t think so. Pretty sure it’s water that becomes visible.
9
posted on
11/02/2009 9:26:44 AM PST
by
TheThirdRuffian
(Nothing to see here. Move along.)
To: La Lydia
As the air compresses in the front of the rocket, so does the invisible water vapor. As the compressed water vapor passes the edge and goes back to subsonic, it flashes back to vapor and forms a cloud. You will only see it in the trans-sonic phase because the shape of the shock wave changes from conforming to the shape of the rocket to a V shaped pattern where the tip of rocket coincides with the tip of the V.
10
posted on
11/02/2009 9:28:16 AM PST
by
Blood of Tyrants
(The Second Amendment. Don't MAKE me use it.)
To: TigerLikesRooster
FTL drive engaged. (Battlestar ref)
11
posted on
11/02/2009 9:29:13 AM PST
by
6SJ7
(atlasShruggedInd: ON)
To: Blood of Tyrants
Thank you. Now I see. I did not know that. This is why I love FR.
12
posted on
11/02/2009 9:29:57 AM PST
by
La Lydia
To: r9etb; TheThirdRuffian
It intrigued me for a while what medium make it visible. Now I know how it is made visible: water vapors.
Thanks for you info.
13
posted on
11/02/2009 9:30:24 AM PST
by
TigerLikesRooster
(LUV DIC -- L,U,V-shaped recession, Depression, Inflation, Collapse)
To: TigerLikesRooster
I think it’s water vapor.
Someone more knowledgeable than me can probably explain it.
14
posted on
11/02/2009 9:33:50 AM PST
by
smokingfrog
(No man's life, liberty or property is safe while the legislature is in session. I AM JIM THOMPSON)
To: Blood of Tyrants
To: Carpe Cerevisi
That is MR. Nerd, to you.
16
posted on
11/02/2009 9:37:24 AM PST
by
Blood of Tyrants
(The Second Amendment. Don't MAKE me use it.)
To: TigerLikesRooster
Not really.
It’s transonic flow around the payload compartment as the air needs to speed up to get around the conical nose section compared to the relative velocity (airflow) around the rest of the vehicle.
It’s a phenomena similar to the wingtip vortices contrails on aircraft at high lift and like the condensation cloud around the canopy of jet fighters as it approaches the transonic area.
The supersonic shockwave would be more like the straight-edge conical patterns, not the dome shaped cylinder you see here.
17
posted on
11/02/2009 9:39:23 AM PST
by
oldbill
To: Blood of Tyrants
I’m no rocket scientist but... when you have air that is close to saturation with water vapor, (almost 100% humidity,) if you decrease the pressure of that air it can hold less water as vapor so the water becomes visible as a cloud. It stands to reason that their would be a low pressure area right below the angle of the mock capsule, at the top of the rocket, creating the effect photographed at speeds much lower than supersonic. I think this is why you can see “clouds” forming behind the wingtips of passenger planes as they approach runways, at speeds of only a couple hundred miles per hour. Any real rocket scientists agree?
18
posted on
11/02/2009 9:40:41 AM PST
by
Sefton
(Marxism, Leninism, Stalinism, Trotskism, Maoism, Obamaism)
To: La Lydia
19
posted on
11/02/2009 9:43:05 AM PST
by
shibumi
(" ..... then we will fight in the shade.")
To: Robe
20
posted on
11/02/2009 9:43:45 AM PST
by
rednesss
(fascism is the union,marriage,merger or fusion of corporate economic power with governmental power)
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