Computational Methods for complex Flowfields.

Abstract

The development of solution algorithms for complex flowfields have been the objective of this research. Embedded subdomains were used to resolve relevant physical processes in a global flow around aerodynamic bodies. Both non-adaptive and adaptive approaches were studied and developed. Results for solving the two dimensional Euler equations using non-adaptive and adaptive finite volume and finite element work are summarized. A new approach is reported for combining expert system approaches with adaptive procedural algorithms into a totally integrated methodology. Algorithms for adaptive explicit and non-adaptive semi-implicit Navier-Stokes calculations are reported. Recent results on formulation of outflow boundary conditions for the Navier-Stokes equations are also presented. Keywords: Euler equations; Navier Stokes equations; Finite element methods; Embedded grids; Adaptive grids; Computational fluid dynamics.

Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1987
Accession Number
ADA185793

Entities

People

  • Earll M. Murman
  • Judson R. Baron

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Computational Fluid Dynamics
  • Computational Science
  • Equations
  • Euler Equations
  • Expert Systems
  • Finite Element Analysis
  • Fluid Dynamics
  • Navier Stokes Equations
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)