| Numéro |
J. Phys. IV France
Volume 10, Numéro PR11, November 2000
Fourth International Workshop on Ram Accelerators
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|---|---|---|
| Page(s) | Pr11-41 - Pr11-47 | |
| DOI | https://doi.org/10.1051/jp4:20001105 | |
Fourth International Workshop on Ram Accelerators
J. Phys. IV France 10 (2000) Pr11-41-Pr11-47
DOI: 10.1051/jp4:20001105
Shock Wave Research Center, Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan
© EDP Sciences 2000
J. Phys. IV France 10 (2000) Pr11-41-Pr11-47
DOI: 10.1051/jp4:20001105
Laser-propelled ram accelerator
A. SasohShock Wave Research Center, Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan
Abstract
The concept of 'laser-propelled ram accelerator (L-RAMAC)' is proposed. Theoretically it
is capable of achieving a higher launch speed than that by a chemical ram accelerator because a higher
specific energy can be input to the propellant gas. The laser beam is supplied through the muzzle, focused
as an annulus behind the base of the projectile. The performance of L-RAMAC is analized based on
generalized Rankine-Hugoniot relations, suggesting that a superorbital muzzle speed is achievable out of
this device.
© EDP Sciences 2000