The Use of Upwind Schemes at High Reynolds Number: A Cautionary Note

Abstract

Simple upwind schemes are the basis of many codes of practical importance for design studies in heat transfer and fluid flow applications, e.g. the FLOW3D code. With care, it is possible to produce codes that can give bounded answers regardless of mesh spacing or time step size. This note highlights a rather disturbing inaccuracy that can arise if the mesh spacing is taken too large. Keywords: Mathematical models; Errors; Great britain.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1988
Accession Number
ADA196227

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People

  • Wayne Arter

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DTIC Thesaurus Topics

  • Aspect Ratio
  • Equations
  • Flow
  • Flow Fields
  • Fluid Flow
  • Heat Flux
  • Heat Transfer
  • Prandtl Number
  • Quadratic Equations
  • Reynolds Number
  • Spatial Distribution
  • Steady State
  • Two Dimensional

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  • Educational Psychology
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

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