Computational Fluid Dynamics Application to the Aerodynamics of Symmetric Sabot Discard
Abstract
Computational fluid dynamics 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 projectiles and discarding sabot components has been investigated. The complex system of shock/ boundary-layer interactions between the projectile and sabot, during the discard sequence, has been numerically simulated. Three sabot components were located symmetrically at various positions near a cone-cylinder projectile. Computed and measure surface pressures for the projectile and sabot compare favorably for Mach number 4.5 and Reynolds number six million. Solutions for a flight Reynolds number of 89 million have been obtained as well. Computational solutions indicate the importance of three-dimensional, multi-body simulations and boundary layer modeling. (EDC)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1990
- Accession Number
- ADA229127
Entities
People
- Michael J. Nusca
Organizations
- Ballistic Research Laboratory