Abstract
A 25-mm-bore ram accelerator has been constructed at Shock Wave Research Center, Institute of Fluid Science, Tohoku University. A goal on this small-sized apparatus is to attain a high muzzle velocity by reducing apparatus dimensions. For mixtures with low energies, gasdynamic sabot separation was successfully made. However, increasing heat release past certain values resulted in a disgorging shock wave through the projectile and thereby in decelerating it. Projectile entry processes were visualized through aspherical lenses installed on both sides of the diaphragm at the entrance of the ram acceleration section filled with inert gases. Precursor shock waves repeated reflection between the sabot and the diaphragm, building a high-temperature region up before diaphragm rupture. This region was clearly visualized by its radiation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
