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Diagnostics and Impulse Performance of Laser-Ablative Propulsion
Sasoh, Akihiro
30832
Mori, Koichi
30833
Anju, Kohei
30834
Suzuki, Koji
30835
Shimono, Masaya
30836
Sawada, Keisuke
30837
Laser ablation
In-tube propulsion
Ram accelerator
Impulse
Pressure time variations and associated flows induced by pulsed laser ablation were experimentally studied using the Velocity Interferometer System for Any Reflector (VISAR) and framing Schlieren visualization. The combination of either aluminum or polyacetal target and TEA CO_2 laser pulse were examined. The VISAR measurement resolved that the pressure modulated from the laser power variation in the impulse generation processes. Integrated impulse induced by repetative CO_2 laser pulses was measured using a torsion-type impulse balance. The effect of the ambient pressure was significant. The measured impulse characteristics were closely associated with target surface morphology and fluid dynamics.
journal article
American Institite of Physics
2008-04-28
application/pdf
AIP Conference Proceedings
1
997
232
241
http://dx.doi.org/10.1063/1.2931894
http://hdl.handle.net/2237/12005
0094-243X
https://nagoya.repo.nii.ac.jp/record/10186/files/31896762.pdf
eng
https://doi.org/10.1063/1.2931894
Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.