10-18-2009, 10:09 PM
|
#1 (permalink)
|
|
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,236
Thanks: 868
Thanked 294 Times in 248 Posts
|
Combustion Dynamics on video
It looks to be a fairly "open" cylinder, with not a lot of quench space, but apparently, someone put a HSC in a cylinder and ran the engine.
From what I've been told, the time that you can see the flames are where they are not properly stratified, and thus, aren't optimal AFR for the given area.
This kind of might give some of us an idea of how things are really taking place in there, for those who can't visualize it.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
I'd like to think that people might open their eyes at some point... instead, I find it more and more likely that I'll just close mine.
-- Author kept secret.
Je ne veux pas d'une meilleure vie. Je veux être heureux avec celle que j'ai maintenant.
(I do not want a better life. I want to be happy with the one I have now.)
Last edited by Christ; 10-19-2009 at 02:34 PM..
|
|
|
|
|
The Following User Says Thank You to Christ For This Useful Post:
|
|
|
Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
10-19-2009, 02:24 PM
|
#2 (permalink)
|
|
Master EcoModder
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 718
Thanks: 41
Thanked 67 Times in 55 Posts
|
Where's the video?
-soD
|
|
|
|
|
10-19-2009, 02:36 PM
|
#3 (permalink)
|
|
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,236
Thanks: 868
Thanked 294 Times in 248 Posts
|
There you go.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
I'd like to think that people might open their eyes at some point... instead, I find it more and more likely that I'll just close mine.
-- Author kept secret.
Je ne veux pas d'une meilleure vie. Je veux être heureux avec celle que j'ai maintenant.
(I do not want a better life. I want to be happy with the one I have now.)
|
|
|
|
|
10-19-2009, 03:00 PM
|
#4 (permalink)
|
|
EcoModding Lurker
Join Date: Aug 2008
Location: CA
Posts: 56
Thanks: 0
Thanked 3 Times in 2 Posts
|
Cool video!
__________________
|
|
|
|
|
10-20-2009, 11:44 PM
|
#5 (permalink)
|
|
Master EcoModder
Join Date: Apr 2009
Location: cda Idaho
Posts: 498
Thanks: 51
Thanked 30 Times in 22 Posts
|
Very nice vid. Nice find Christ 
Look at the fuel burning around the intake valve. Lots of info there!!!!! |
|
|
|
|
10-31-2009, 04:30 PM
|
#6 (permalink)
|
|
Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 3,596
Thanks: 867
Thanked 632 Times in 371 Posts
|
fractals
I flagged an article about mathematicians working on combustion dynamics utilizing fractals formally only of theoretical interest.I think its MIT doing the research.
Looks like no stone will remain un-turned.
Cool pics! Thanks!
|
|
|
|
|
10-31-2009, 09:28 PM
|
#7 (permalink)
|
|
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,236
Thanks: 868
Thanked 294 Times in 248 Posts
|
Quote:
Originally Posted by aerohead
I flagged an article about mathematicians working on combustion dynamics utilizing fractals formally only of theoretical interest.I think its MIT doing the research.
Looks like no stone will remain un-turned.
Cool pics! Thanks!
|
One of them is a video, it just embedded as a pic and a video for some reason. The top one will stream about 30 seconds, in case you didn't watch it. It's very interesting to see the red/orange flame around the valve, noticing how inefficient the combustion is in that area. That appears to be good territory for detonation events to occur.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
I'd like to think that people might open their eyes at some point... instead, I find it more and more likely that I'll just close mine.
-- Author kept secret.
Je ne veux pas d'une meilleure vie. Je veux être heureux avec celle que j'ai maintenant.
(I do not want a better life. I want to be happy with the one I have now.)
|
|
|
|
|
The Following User Says Thank You to Christ For This Useful Post:
|
|
|
11-04-2009, 07:33 PM
|
#8 (permalink)
|
|
Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 3,596
Thanks: 867
Thanked 632 Times in 371 Posts
|
video
Just watched the video.I would have never imagined one could get inside the chamber like that and observe.Wow!
I need to correct myself.
The article about fractals appeared in 1992,in ROAD& TRACK (sorry I don't have the month).
The story comes from SAE Paper# 922242 "Fractal Analysis of Turbulent Premixed Flame Images from SI Engines."
|
|
|
|
|
11-04-2009, 07:37 PM
|
#9 (permalink)
|
|
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,236
Thanks: 868
Thanked 294 Times in 248 Posts
|
Phil, I'm not sure exactly how they did it, TBH.
In fact, for all I know, that video could be a very elaborate fake. It's kind of hard to discuss any part of it, since it's origins are unknown. I'm really not sure exactly how one would get a camera in there and be able to (safely) view the combustion dynamics first hand, myself, nor am I sure how a camera could withstand the violent combustion waves and heat generated therein.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
I'd like to think that people might open their eyes at some point... instead, I find it more and more likely that I'll just close mine.
-- Author kept secret.
Je ne veux pas d'une meilleure vie. Je veux être heureux avec celle que j'ai maintenant.
(I do not want a better life. I want to be happy with the one I have now.)
|
|
|
|
|
11-04-2009, 08:04 PM
|
#10 (permalink)
|
|
Master EcoModder
Join Date: May 2008
Location: Ireland
Posts: 506
Thanks: 99
Thanked 28 Times in 19 Posts
|
Most excellent video. Well done! Lots to learn here.
ollie
__________________
|
|
|
|
|
(11-07-2009)
