Numerical Simulation of Sabot Discard Aerodynamics using Computational Fluid Dynamics,
Abstract
Computational fluid dynamics (CFD) solutions of the three-dimensional Navier-Stokes equations have been applied to sabot discard aerodynamics for gun-launched, saboted, armor-piercing projectiles, The portion of the launch cycle which involves strong aerodynamic interference between the projectile and discarding sabot (carrier) components has been investigated. Three sabot components were located symmetrically at various positions near the projectile and at angle of attack. The complex system of shock/boundary-layer interactions between multiple bodies (projectile and sabots), during the discard sequence, has been numerically simulated. Computed and measured surface pressures compare favorably for Mach number 4.5 and Reynolds number six million per meter. Comparison of symmetric sabot discard trajectories predicted using CFD and the AVCO sabot design code are shown.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1992
- Accession Number
- ADP006609
Entities
People
- Michael J. Nusca
Organizations
- Ballistic Research Laboratory