Dynamic Coupling of Boundary-Fitted Coordinate System with the Navier-Stokes Equations.

Abstract

This research effort concerned the incorporation of a self-adjusting boundary-fitted coordinate system into a numerical solution of the time-dependent, incompressible Navier-Stokes equations. In the resulting code, the coordinate system continually adjusts itself in time to automatically concentrate lines in regions of developing flow gradients. The code is applicable to arbitrary two-dimensional bodies. This code is based on the velocity-pressure formulation with an algebraic turbulent eddy viscosity model. The solution uses second-order, central differences and is done by SOR iteration with a variable acceleration parameter field that is calculated automatically from the local velocity and grid spacing. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 13, 1982
Accession Number
ADA122941

Entities

People

  • Joe F. Thompson

Organizations

  • Mississippi State University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Coordinate Systems
  • Differential Equations
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Grids
  • Navier Stokes Equations
  • Numerical Analysis
  • Numerical Methods And Procedures
  • Partial Differential Equations
  • Poisson Equation

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Space