Parallel finite element computation of missile aerodynamics

W. B. Sturek, S. Ray, S. Aliabadi, C. Waters, T. E. Tezduyar

Research output: Contribution to journalArticlepeer-review

Abstract

A flow simulation tool, developed by the authors at the Army HPC Research Center, for compressible flows governed by the Navier-Stokes equations is used to study missile aerodynamics at supersonic speeds, high angles of attack and for large Reynolds numbers. The goal of this study is the evaluation of this Navier-Stokes computational technique for the prediction of separated flow fields around high-length-to-diameter (L/D) bodies. In particular, this paper addresses two issues: (i) turbulence modelling with a finite element computational technique and (ii) efficient performance of the computational technique on two different multiprocessor mainframes, the Thinking Machines CM-5 and CRAY T3D. The paper first provides a discussion of the Navier-Stokes computational technique and the algorithm issues for achieving efficient performance on the CM-5 and T3D. Next, comparisons are shown between the computation and experiment for supersonic ramp flow to evaluate the suitability of the turbulence model. Following that, results of the computations for missile flow fields are shown for laminar and turbulent viscous effects.

Original languageEnglish
Pages (from-to)1417-1432
Number of pages16
JournalInternational Journal for Numerical Methods in Fluids
Volume24
Issue number12
DOIs
Publication statusPublished - 1997 Jun 30
Externally publishedYes

Keywords

  • Compressible flows
  • Missile aerodynamics
  • Parallel computing methods

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics

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