Accurate, Productive Aerodynamic Simulation on Patched Mesh Systems.

Abstract

The research has aimed at defining data structures and completing tools for a new flexible approach to scientific programming and problem solving. Both problems of program complexity associated with changing models and physics as well as joined and disjoint multiple independent patched domain decompositions for treating complex geometries can be systematically organized within the context of the directed graph programming concept being explored. Problems and parts of problems having geometric connectivity or its analogs such as precedence relationships are naturally exhibited and easily debugged or modified in the graph. The solution of problems is literally to traverse the graph. For the planned prototype aerodynamic simulation facility the graphs which are to embody grid generation and Navier Stokes solution procedures are to be constructed with a graphical editor hosted in a high performance graphics workstation. Keywords: Adaptive gridding; Navier stokes; Patched grids, Upwind methods.

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 1987
Accession Number
ADA192040

Entities

People

  • Charles K. Lombard
  • Ethiraj Venkatapathy
  • Jian Yang
  • Jorge Bardina
  • Joseph Oliger

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Euler Equations
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Graphics
  • Hydrodynamics
  • Mechanical Properties
  • Operating Systems
  • Pressure Distribution
  • Shock Waves
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Science.
  • Systems Analysis and Design