Accession Number:

ADP004797

Title:

Navier-Stokes Computations of Transonic Flow Over a Projectile with a Two-Equation Model of Turbulence,

Descriptive Note:

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1984-08-01

Pagination or Media Count:

14.0

Abstract:

A thin-layer Navier-Stokes code has been used to compute the axisymmetric turbulent flow over a projectile at transonic speeds. The thin layer form of the compressible Navier-Stokes equations is solved using a time dependent, implicit numerical algorithm. Numerical computations have been made using aero-equation algebraic and two-equation kinetic energy and length scale turbulence eddy viscosity models. The algorithm, and how the turbulence models are incorporated into it, are described. Computed results have been obtained for a secant-ogive-cylinder-boattail shape at M infinity .94 and .97 using both models and are compared with experiment. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE