Engine with pulsated detonation waves

The driving with pulsated detonation waves (or PDE in English for Pulsed Detonation Engine ) uses the concept very close to that of the Pulsoréacteur. The principal difference is that the aeropulse ensures a Déflagration whereas the PDE produces a Détonation. The deflagration produces pressures of ejection of about two to three atmospheres at subsonic speeds. The detonation with the advantage of assembling to pressures of about 30 atmospheres with speeds of ejection higher than Mach 5.

They thus share a certain simplicity and very close appearances, but the results are considerably different. Actually, engines PDE are often aeropulses in which one ensures the transition from the deflagration to the detonation during the way of gases towards the exit of the conduit.

Trail

An effect curious about the use of an engine PDE on a plane with high-altitude would be the appearance of an irregular trail, with the pace of a row of white pearls rather than a continuous trail.

This type of propulsion is allotted by certain to hypothetical the American reconnaissance aircraft Aurora.

Fiction

This propulsion is used in the film Furtif left in 2005.

Reference

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