Interactive Hyperbolic Grid Generation for Projectile CFD

Abstract

The task of grid generation for projectile configurations has previously been performed using non-interactive batch codes. This is not necessarily a trivial task, and as configurations become more complicated, the grid generation process becomes more difficult. In an effort to make this task easier to perform, an existing, non-graphical grid generation code was ported from a VAX 8600 running VMS to an Iris Silicon Graphics work station running Irix. The new code, BRL-PROGRID (Projectile Grid generation), incorporated interactive graphics to provide ease and flexibility of use while at the same time allowing for many iterations of a grid to be generated. Capabilities gained through the development of the interactive grid generator are described. Examples of grids generated using a modified hyperbolic solver are shown for concave base cavities, and the application of CAD software to the grid generation process is discussed.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1992
Accession Number
ADA252496

Entities

People

  • Charles J. Nietubicz
  • Earl N. Ferry Jr.

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Computer-Aided Design
  • Difference Equations
  • Differential Equations
  • Engineering
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Graphics
  • Hyperbolic Differential Equations
  • Interactive Graphics
  • Mechanics
  • Numerical Analysis
  • Three Dimensional
  • Two Dimensional
  • Work Stations

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Database Systems and Applications
  • Fluid Dynamics.