Spectral Solution of the Viscous Blunt Body Problem, 2: Multidomain Approximation.

Abstract

We present steady solutions of high speed viscous flows over blunt bodies using a multidomain Chebyshev spectral collocation method. The region within the shock layer is divided into subdomains so that internal layers can be well-resolved. In the interiors of the subdomains, the solution is approximated by Chebyshev collocation. At interfaces between subdomains, the advective terms are upwinded and the viscous terms are treated by a penalty method. The method is applied to five flows the Mach number range 5-25 and Reynolds number range 2,000 - 83,000, based on nose radius. Results are compared to experimental data and to a finite difference result.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1994
Accession Number
ADA288726

Entities

People

  • David A. Kopriva

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Blunt Bodies
  • Boundaries
  • Boundary Layer
  • Coefficients
  • Computational Fluid Dynamics
  • Contracts
  • Engineering
  • Equations
  • Experimental Data
  • Flow
  • Fluid Dynamics
  • Geometry
  • Heat Transfer
  • Mach Number
  • Reynolds Number
  • Temperature Gradients
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.