Propellant Gas Flow during Shot Ejection
Abstract
For lower projectile velocities, a rarefaction wave moves into the bore from the muzzle after shot ejection. Acoustic thermometery, used to determine the temperature of the propellant gases near the muzzle, assumes that the rarefaction wave is one-dimensional. In the present report, a numerical simulation is used to compute the wave motion within the gun immediately following shot ejection. The results describe the initial development of the flow; within the gun tube the rarefaction wave becomes one-dimensional quickly enough for the assumption from acoustic thermometry to be a good approximation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1984
- Accession Number
- ADA145890
Entities
People
- K. S. Fansler
Organizations
- Ballistic Research Laboratory