ANZIAM J. 46(E) pp.C1069--C1085, 2005.

Drag optimization for axisymmetric afterbodies with jet plume using computational fluid dynamics

Masoud Mirzaei

Sina Arabi

(Received 20 November 2004, revised 19 September 2005)

Abstract

A supersonic turbulent flow over an axisymmetric body is numerically studied using the Navier-Stokes equations in conjunction with the k-e turbulence model. Numerical calculations of total body drag (including wave drag, skin friction drag, and base drag) were carried out for a boat tailed projectile with and without base-bleed. Surface pressures and viscous layer profiles are in good agreement with experimental data. Golden Section optimization was adopted to optimize the body boat tail. This optimization may be used as a tool for preliminarily design of axisymmetric boat tailed bodies.

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Authors

Masoud Mirzaei
Sina Arabi
Mechanical Engineering Department, K. N. Toosi University of Technology, Tehran, Iran. mailto:mirzaei@kntu.ac.ir

Published October 14, 2005. ISSN 1446-8735

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