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Aerospace Engineering
Rotating Detonation Engine, the future of aviation propulsion?
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[QUOTE="Benjies, post: 6824329, member: 692155"] Hi Abheer- turbofans will not be replaced by RDEs for subsonic propulsion. RDEs are being researched for hypersonics and alternatives to conventional deflagration rocket engines. The gains in specific impulse would have to be a factor of ten or more to make the RDE compete with a commercial turbofan. This is not feasible, and because RDEs are very complex, I would say that will never happen. RDEs are being investigated at universities, but they are also being investigated in the military. Currently, the most powerful publicly-acknowledged RDE I am aware of is sitting at [URL='https://afresearchlab.com/technology/rotating-detonation-rocket-engines-rdre/']22kN of thrust[/URL]. This is still not quite cutting it for some necessities in hypersonics, such as packaging limitations, or simply thrust required to maintain a glide at high Mach numbers. Basically, the "normal, lame" commercial turbofans you know on airplanes are actually extremely well-engineered engines with the highest specific impulses known to mankind for chemical propulsion. RDEs offer something to rocketry, but not to the plane you fly to LA. [/QUOTE]
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Rotating Detonation Engine, the future of aviation propulsion?
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