Assessment of a Method for Predicting the Drag and Boundary-Layer Development on a Body of Revolution at Zero Incidence,

Abstract

A comparison between experimental data and a boundary-layer and drag prediction method for bodies of revolution at zero incidence and high Reynolds number is discussed. The only physical input to the prediction method is that of transition position. In general drag predictions agree well with measurements both in trend and in absolute magnitude and predicted velocity profiles on afterbodies with an included semi-angle of less than about 15 deg. agree well with measurements. A modification to the method has been developed which gives a better agreement between predicted and measureed velocity profiles on fuller afterbodies provided that no flow separation takes place.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA069570

Entities

People

  • D. J. Atkins

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Bodies
  • Bodies Of Revolution
  • Boundary Layer
  • Experimental Data
  • Fineness Ratio
  • Flow
  • Layers
  • Measurement
  • Mechanical Engineering
  • Potential Flow
  • Pressure Distribution
  • Pressure Gradients
  • Reynolds Number
  • Ship Model Basins
  • Skin Friction
  • Static Pressure
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers