Computational Methods for Complex Flowfields

Abstract

Development of solution algorithms for complex flowfields has been the objective of this research. Embedded subdomains were used to resolve relevant physical processes in a global flow around aerodynamic bodies. Adaptive approaches were studied and developed for the two-and three-dimensional Euler equations and two-dimensional Navier Stokes equations using finite volume and finite element methods. A new approach is reported for combining expert system approaches with adaptive procedural algorithms into a totally integrated methodology. Recent results on formulation of outflow boundary conditions for the Navier-Stokes equations and compact high-order schemes for the Euler equations are also presented. Additional tasks included: studying the performance of CFD algorithms on several parallel processors; a short study on turbulent spot measurements; and the prediction of dispersive errors in numerical solution of the Euler equations. Keywords: Numerical methods and procedures; Euler equations; Navier-Stokes equations; Finite element methods; Embedded grids; Adaptive grids; Computational fluid dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Jul 05, 1989
Accession Number
ADA211485

Entities

People

  • Earll M. Murman
  • Judson R. Baron

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Computers
  • Differential Equations
  • Fluid Dynamics
  • Fluid Flow
  • Hydrodynamics
  • Mechanical Properties
  • Mechanics
  • Numerical Methods And Procedures
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)