Computation of the Roll Characteristics of Several Fin Designs for a Long Rod Penetrator
Abstract
A recently developed computational technique has been applied to compute the aerodynamic roll characteristics of three proposed fin designs for a high length to diameter ratio kinetic energy projectile. These aerodynamic parameters include the roll producing moment, the roll damping moment, and the equilibrium spin rate, defined as the spin rate for which the net roll moment is zero. These aerodynamic parameters have been determined by computing the flow field about the projectile using the Parabolized Navier-Stokes computational approach. Estimates of these parameters have also been obtained using engineering approaches. Comparisons between the computational results and range measurements provide validation of the computational approach. Parabolized navier-stokes, Finned Projectiles, Roll damping, Roll characteristics, Kinetic energy projectiles.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1989
- Accession Number
- ADA208122
Entities
People
- Paul Weinacht
Organizations
- Ballistic Research Laboratory