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Sorry to say but they don't have the autonomy as IITs wield. Just look in the past all major administrator belong to some party or other in someway. So they do partiality, and all players of Indian cricket team(BCCI controlled) are only creamy layer ones.Your logic is that IITians are the best minds among 1.3 billion Indians, fair enough. By that logic Indian hockey and cricket team features the best athletes among 1.3 billion Indians so they should be the best which they aren't.
By your logic every coyntry having population less than India should have less capable engineers.
But again,I'm not starting a debate.I have always admitted than IITians are better if not equal than their Pakistani counterparts.
Good news but 5s test is too small. Here is a presentation on a scramjet .. key challange : Getting the material to withstand SCRAMJET combustion. Very hard
http://www.uni-stuttgart.de/itlr/graduierten/grk_introduction.pdf
Has it been confirmed this ISRO test was 5 seconds?
LAMO bang your head after seeing the legitLOL, a country that can't make bullets claim to have breakthrough in scramjet engine
Yeah I read it in the news report... I am really not sure how much longer we can sustain this because metallurgy has been our weak spot. Not saying it's a lie/deception, just that I am not aware of any metallurgical breakthroughs that might have happened. Especially if this is gonna be reusable.Has it been confirmed this ISRO test was 5 seconds?
The brits have already been working on it for 25 years...The magic ticket to the future would be to develop a hybrid engine....that does not require external propulsion but can produce its own thrust from the getgo....did anyone think of retractable turbine blades? It could start of a Ramjet(like the Blackbird) and then after crossing Mach 3 or 4 retract or fold its blades to kind of convert to a scramjet....that'd be cool.
Care to post a link?in 2011 and the test lasted far longer than 5s.
India has made a baby step.
Still, congratulations.
Yeah I read it in the news report... I am really not sure how much longer we can sustain this because metallurgy has been our weak spot. Not saying it's a lie/deception, just that I am not aware of any metallurgical breakthroughs that might have happened. Especially if this is gonna be reusable.
@amardeep mishra
Do you know if this was the classical "double ramp" config? WHich material is used to make this engine, especially nozzels and combustion chamber?
The magic ticket to the future would be to develop a hybrid engine....that does not require external propulsion but can produce its own thrust from the getgo....did anyone think of retractable turbine blades? It could start of a Ramjet(like the Blackbird) and then after crossing Mach 3 or 4 retract or fold its blades to kind of convert to a scramjet....that'd be cool.
Yeah I guess .. the most important result of this test will be the gathering of important parameters for simulation. I am not a gas dynamics guy (I simulate flows but mostly at Mach 2). My understanding is that there is a considerable change in the fluid laws at hyper sonic speeds... The associated models need to be experimentally verified before they can be used (parameter values et al) . We can "soft" develop the engine and wait for the metallurgy to catch up.Fair enough, 5 second test is a very promising starting point. The materials are the same as other regular jet engines...special nickel superalloys for the basic structure:
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790025038.pdf
http://ijiet.com/wp-content/uploads/2014/10/3.pdf
On top of this there are thermal barrier coating technologies and other means of creating greater thermal resistance....but you have to optimise their use carefully.
They way I see it though we will need a massive advance in the base metallurgy at possibly a nano scale (so we can really help mitigate issues like low cycle creep through controlling the initiation of it). In a way its like making glass so perfect it becomes really tough to break (because there is no single point weakness). This will need massive amounts of RnD though (and plenty of nano foundries and engineering development for all the iterations to check from theory as it develops).
For the time-being the scramjet project by ISRO may be more useful as a stepping stone to be on the forefront of testing new advanced materials and techniques....and push up the burn time as high as it can go in an incremental manner. These will have good flow back on technology for regular jet engines etc.
Btw what makes IITs so special in India ?
What do IITs have which other Indian universities lack.. Any1 ?