Where Can I Find Advanced Scramjet Theory Online?

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Discussion Overview

The discussion revolves around advanced scramjet technology, specifically focusing on recent flight attempts and the theoretical underpinnings of scramjet engines. Participants share links to articles and express excitement about ongoing research and developments in the field.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant mentions a scramjet aiming for Mach 10, referencing an article about the flight scheduled for Monday.
  • Another participant identifies the scramjet as NASA's X-43A and expresses enthusiasm for the upcoming flight, providing a link for more information.
  • There are claims about the X-43A successfully achieving nearly Mach 10, with discussions about the implications of such speeds and the limits of scramjet technology, which some participants suggest could exceed Mach 20.
  • Concerns are raised regarding the scale of the X-43A as a subscaled model and the challenges of achieving reliable supersonic combustion, including high drag and extreme aerothermal flux.
  • One participant acknowledges contributions from scientists in France and Japan to supersonic combustion research.
  • A request for more advanced scramjet theory resources is made, with Wikipedia being deemed too basic for a seminar preparation.

Areas of Agreement / Disagreement

Participants express excitement about the advancements in scramjet technology, but there are differing views on the implications of the X-43A's achievements, the challenges of scaling up, and the future of scramjet research. The discussion remains unresolved regarding the best sources for advanced scramjet theory.

Contextual Notes

Some participants highlight the limitations of current knowledge regarding combustion processes at high speeds and the potential impact of funding shifts on future scramjet projects.

meteor
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There's a scramjet trying to achieve a velocity of Mach 10; it will do the flight on Monday, trying to improve the actual record of Mach 7. I hope it can achieve it. Here's an article
http://www.newscientist.com/news/news.jsp?id=ns99996658
 
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you're porbably talking about nasa's x-43a. i hope the final flight that is scheduled on monday 15 nov will go fine. i have heard about this amazing research few weeks ago and i think it is very exciting. if you want to know more, the following link gives a closer look at the x-43a mission.

http://www.nasa.gov/missions/research/x43-image-feature.html
 
http://www.newscientist.com/news/news.jsp?id=ns99996686
yeahhh! :smile:
NASA's X-43A scramjet programme successfully smashed its own world speed record for aircraft by flying at nearly 10 times the speed of sound. The flight proves its radical, air-breathing engine can function at speeds of nearly 12,000 kilometres per hour.
12000 km/h is 200 km/s. Better no think about it :rolleyes:

What's the next step? According to wikipedia, the limit of the scramjet technology is superior to Mach 20...
 
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meteor said:
12000 km/h is 200 km/s. Better no think about it :rolleyes:
Ya want to try that one again...? :rolleyes:
 
meteor said:
http://www.newscientist.com/news/news.jsp?id=ns99996686
yeahhh! :smile:

12000 km/h is 200 km/s. Better no think about it :rolleyes:

What's the next step? According to wikipedia, the limit of the scramjet technology is superior to Mach 20...

Yes, NASA guys have achieved it. But do not forget it's only a subscaled model of a real engine (I think the aircraft is 1m lenght), and it has achieved such velocities only for a while. As far as I know, the Hyper-X project is going to be put apart by Bush derivating funds to Mars manned travel.

In my opinion, achieving a succesfull supersonic combustion with high reliability and enough controlling, and designing a commercial engine is far beyond. Only very little is know about what happens into the combustion chamber at that velocity, and how the engineers are going to deal with the high drag and extreme high aerothermal flux.

Anyway, congratulations to USA for this achievement. Also France and Japan sciencists have done a great job all over these years researching in supersonic combustion, so they have an small part of responsability at this event.
 
Ya want to try that one again...?
Ok, a little less, then :biggrin:
 
Scramjet' launched on Mach 10 flight attempt off California

A tiny unmanned NASA "scramjet" soared over the Pacific Ocean Tuesday to demonstrate a radical new engine technology by attempting to fly at a record speed of about 7,000 mph, almost 10 times the speed of sound.

The 12-foot-long X-43A supersonic combustion ramjet was to fly under its own power at Mach 10 for about 10 seconds after separating from a booster rocket at 110,000 feet, then glide to a splash landing.

The X-43A, mounted on a Pegasus rocket used to boost it to flight speed, was carried under the wing of a B-52 aircraft and released at an altitude of 40,000 feet over a test range off the Southern California coast. The rocket motor then fired for a 90-second ascent.

Like its predecessors, the X-43A will not be recovered from the ocean.

Reference:
http://archive.harktheherald.com/archive_detail.php?archiveFile=./pubfiles/prv/archive/2004/November/17/OtherNews/53155.xml&start=0&numPer=20&keyword=scramjet&sectionSearch=&begindate=1%2F1%2F1997&enddate=12%2F31%2F2004&authorSearch=&IncludeStories=1&pubsection=&page=&IncludePages=&IncludeImages=&mode=allwords&archive_pubname=Heraldextra.com%0A%09%09%09
 
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Pv

I've been asked to do a basic seminar on SCramjet in two weeks' time. Can you tell me where to find scramjet theory on the net? About the best place I found was Wikipedia, but that's just too basic.
 

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