Every now and then a poster will put up a picture that purports to be of a jet fighter breaking the sound barrier. These pictures are of a cloud/ vapor front that forms around the aircraft under certain atmospheric conditions. Today while watching the Indycar race from Loudon N. H. I have seen this cloud/ vapor phenomenon appear off of the rear wing of the cars on the track. While these cars are fast, I don't think they are breaking the sound barrier.
1 posted on
08/14/2011 2:37:03 PM PDT by
1raider1
To: 1raider1
Its the change in air pressure causing the moisture to condense I believe.
2 posted on
08/14/2011 2:39:21 PM PDT by
cripplecreek
(Remember the River Raisin)
To: 1raider1
Thought what was neat? I’m only seeing a title and your comment.
3 posted on
08/14/2011 2:41:36 PM PDT by
RobRoy
(The US today: Revelation 18:4)
To: 1raider1
Is there supposed to be some sort of link or picture or video or something?
4 posted on
08/14/2011 2:41:59 PM PDT by
freedumb2003
(Herman Cain 2012)
To: 1raider1
Vapor/ sound barrier phenomenon
5 posted on
08/14/2011 2:42:13 PM PDT by
NoLibZone
(Life as Nancy Pelosi knows & wants it, must end, Life As Nancy Knows it is to raise Debt 10% annualy)
To: 1raider1
It was pretty humid today in Loudon. Intellicast had it listed at 76% at race time.
10 posted on
08/14/2011 2:52:04 PM PDT by
KarlInOhio
(The Repubs and Dems are arguing whether to pour 9 or 10 buckets of gasoline on a burning house.)
To: 1raider1
While these cars are fast, I don't think they are breaking the sound barrier. No, they aren't. And the vapor doesn't appear because the sound barrier is being broken, although that may cause it to precipitate (pun intended).
As the divergent pressures from the top of the wing and the bottom of the wing down, one of the side effects is to suddenly change the dew-point of the air where they intermix.
Remember.... p=vrnt.... Compressing air makes it hot, lowering the pressure cools it.
So you're looking at a micro-scale thunderstorm event where a dry-line high pressure area meets a cold front.
But I'm just a cook. ;) What do I know?
/johnny
To: 1raider1
On the right day (temperature/humidity) you can come into the break at 400+ knots in an F/A-18 and make a nice cottonball over midfield (or at the numbers if you’re feeling frisky).
16 posted on
08/14/2011 3:01:24 PM PDT by
paddles
("The more corrupt the state, the more it legislates." Tacitus)
To: 1raider1
Prandtl-Glauert Singularity Shock Wave Near-Sound Barrier condensation (condensation around the shock wave caused by Prandtl arguing with Glauert):
Aircraft lift-induced condensation (condensation caused because the thing is, like, screaming into the sky on a moist day):
25 posted on
08/14/2011 3:08:43 PM PDT by
Talisker
(History will show the Illuminati won the ultimate Darwin Award.)
To: 1raider1
27 posted on
08/14/2011 3:10:02 PM PDT by
ThomasThomas
( Congressmen should wear uniforms like NASCAR drivers, so we can identify their corporate sponsors.)
To: 1raider1
I have a sandwich in my refrigerator.
30 posted on
08/14/2011 3:13:11 PM PDT by
AppyPappy
(If you aren't part of the solution, there is good money to be made prolonging the problem.)
To: 1raider1
32 posted on
08/14/2011 3:17:11 PM PDT by
1raider1
To: 1raider1
41 posted on
08/14/2011 3:27:00 PM PDT by
TribalPrincess2U
(democRATS—just doing al Qaeda ground work? Obama owns it all now.)
To: 1raider1
47 posted on
08/14/2011 4:06:44 PM PDT by
Daffynition
("Don't just live your life, but witness it also.")
To: 1raider1
In trans-sonic conditions (Mach .9 - 1.2) shock wave created.
To: 1raider1
Every now and then a poster will put up a picture that purports to be of a jet fighter breaking the sound barrier.
And most of those pictures put up have, indeed, been of a jet fighter breaking the sound barrier and not what you're referring to.
52 posted on
08/14/2011 4:52:48 PM PDT by
aruanan
To: 1raider1; All
59 posted on
08/14/2011 6:19:30 PM PDT by
Bean Counter
("For every man there exists a bait he cannot resist swallowing.".....Nietzsche)
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