Calculation of Viscous Drag and Turbulent Boundary-Layer Separation on Two-Dimensional and Axisymetric Bodies in Incompressible Flows

Abstract

The report studies the accuracy of calculating the total drag of two- dimensional and axisymmetric bodies and the accuracy of calculating the location of turbulent boundary-layer separation in flows past such bodies. The drag calculations were made by using the Douglas boundary-layer method. This is an implicit finite-difference method applicable to both laminar and turbulent boundary layers. The method also accounts for the transverse curvature effects. In general, comparison of calculated and experimental drag coefficients for both two-dimensional and axisymmetric bodies are in good agreement with experiment. The separation calculations were made by considering four different separation-prediction methods. They are the Douglas boundary-layer method, Head's method, Stratford's method and Goldschmied's method.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1970
Accession Number
AD0720775

Entities

People

  • A. Matthew Smith
  • G. J. Mosinskis
  • Tuncer Cebeci

Organizations

  • Douglas

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Fluid Dynamics
  • Fluid Mechanics
  • Geometry
  • Hydrodynamics
  • Incompressible Flow
  • Laminar Boundary Layer
  • Physics Laboratories
  • Plastic Explosives
  • Pressure Distribution
  • Reynolds Number
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.