Accession Number:

ADA634677

Title:

Computational Fluid Dynamic Analysis of the Base Cavity Interactions of the CAN-4 Research Projectile

Descriptive Note:

Technical memo

Corporate Author:

DEFENCE RESEARCH ESTABLISHMENT VALCARTIER (QUEBEC)

Personal Author(s):

Report Date:

1997-03-01

Pagination or Media Count:

36.0

Abstract:

The aerodynamics of a cone-cylinder-flare projectile at high supersonic speeds has been investigated through computational means, and the results compared with existing experimental results from DREVs aeroballistic range. Aerodynamic coefficients, base pressure surveys, base flow visualization and shock patterns over the projectile were investigated for a Mach number range of 3.5 to 5.75. A goal of this investigation was the numerical study of the effects of a base cavity on the aerodynamic behavior of this projectile. Quantitative and qualitative information was accurately modelled by the CFD code as indicated by correlations between experimental and numerical values. The results seem to indicate an independence between the aerodynamic coefficients aerodynamic coefficients constitute some of the major parameters of this study and the presence of a base cavity for this particular configuration.

Subject Categories:

  • Ammunition and Explosives
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE