Effect of the Refilling Processes on the Thrust Generation of a Laser Pulsejet

Details Effect of the Refilling Processes on the Thrust Generation of a Laser Pulsejet Effect of the Refilling Processes on the Thrust Generation of a Laser Pulsejet

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..702...40m&link_type=abstract

BEAMED ENERGY PROPULSION: Second International Symposium on Beamed Energy Propulsion. AIP Conference Proceedings, Volume 702, p

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Applications

Laser Applications, Spaceborne And Space Research Instruments, Apparatus, And Components, Applied Classical Electromagnetism

Scientific paper

Thrust generation of a laser pulsejet with a conical nozzle has been studied. An impulse imparted by a laser-induced blast wave to the conical nozzle was measured experimentally, and the computational analyses were performed to clarify the relationship between the nozzle configuration and the fluid motion. As a result, it was found that the optimum nozzle length was predictable for given blast wave energy conversion efficiency. The impulse was quite sensitive to the divergence angle of the nozzle. This sharp decrease is mainly due to the fluid motion during the refilling stage of the engine cycle.

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