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They are simpler than conventional rocket and use pressure feeding, avoiding turbo-pumps.
http://arc.uta.edu/publications/cp_file … ISSW24.pdf
In the article above it is claimed they can have up to 40% more specific impulse than a same propelled conventional chemical rocket. So an high efficient LOX-LH2 pulse detonation rocket can reach 600-650 s of specific impulse. Can it be real?
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This is the kind without nuclear bombs I take it.
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That's a pulsed combustion device, not explosion propulsion. The mechanism is different.
The one in the article is an academic lab play-toy. But, these things have been experimented-with for missile and vehicle propulsion. The upshot of that was you have to build hell-for-stout (which is heavy!) to take the pounding, and it isn't likely you could use it for manned vehicles because of that pounding.
There are some rather severe restrictions on what kinds of fuels (or propellants) you can use that can be made to detonate. Think low molecular weights and gas phase only.
GW
GW Johnson
McGregor, Texas
"There is nothing as expensive as a dead crew, especially one dead from a bad management decision"
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