Analytic and Numerical Modeling of Heat and Material Transport in Electrical Hypervelocity Guns.
Abstract
A computer simulation code has been developed. The physical transport processes of radiation transport, viscosity, electrical and thermal conductivity and turbulence were included in the study. The code benchmarked against material erosion experiments with metals and insulators. The processes occurring near the bore wall of an electrothermal gun have been evaluated. The studies have demonstrated the utility of a gun system redesign which lowers the propelling gas temperature near the wall. This has resulted in the experimental reduction of gun bore erosion to levels at or below the erosion in conventional powder guns. The code results have also been interpreted for the electromagnetic (rail) gun case. Here the unavoidable high propelling gas temperatures cause a more severe erosion problem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 04, 1987
- Accession Number
- ADA192178
Entities
People
- Niels K. Winsor