Comparison of Several Dissipation Algorithms for Central Difference Schemes.

Abstract

Several algorithms for introducing artificial dissipation into a central difference approximation to the Euler and Navier Stokes equations are considered. The focus of the paper is on the convective upwind and split pressure (CUSP) scheme which is designed to support single interior point discrete shock waves. This scheme is analyzed and compared in detail with scalar and matrix dissipation (MATD) schemes. Resolution capability is determined by solving subsonic transonic, and hypersonic flow problems. A finite-volume discretization and a multistage time-stepping scheme with multigrid are used to compute solutions to the flow equations. Numerical results are also compared with either theoretical solutions or experimental data. For transonic airfoil flows the best accuracy on coarse meshes for aerodynamic coefficients is obtained with a simple MATD scheme.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1997
Accession Number
ADA329454

Entities

People

  • E. Turkel
  • R. C. Swanson
  • Rolf Radespiel

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Aspect Ratio
  • Boundary Layer
  • Computations
  • Equations
  • Euler Equations
  • Fluid Dynamics
  • High Resolution
  • Hypersonic Flow
  • Inviscid Flow
  • Mach Number
  • Pressure Distribution
  • Shock Waves
  • Skin Friction
  • Steady Flow
  • Steady State
  • Transonic Flow
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)
  • Operations Research

Technology Areas

  • Hypersonics