A Rapid Method for Predicting Suction Distributions to Maintain Attached, Laminar Boundary Layers on Bodies of Revolution.

Abstract

An approximate method is presented for the determination of the minimum amount of suction necessary to maintain a laminar, attached boundary layer in incompressible, axisymmetric flow. The method is an extension of A.M.O Smith's procedure which calculations a general laminar boundary layer by piecewise similarity solutions. To extension has been programmed on a VAX 11/782 computer and found to the extremely fast, taking from 3 to 4 secs. in CPU time. Boundary-layer solutions for four axisymmetric bodies at a variety of Reynolds numbers have been obtained and the results are compared with finite difference solutions which use the suction distribution from the approximate theory. Agreement between the two is generally good.

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Document Details

Document Type
Technical Report
Publication Date
Dec 09, 1983
Accession Number
ADA139125

Entities

People

  • G. H. Hoffman

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Agreements
  • Axisymmetric
  • Axisymmetric Flow
  • Boundary Layer
  • Computers
  • Databases
  • Flow
  • Geometry
  • Laminar Boundary Layer
  • Laminar Flow
  • Layers
  • Navy
  • Pressure Distribution
  • Pressure Gradients
  • Revolutions
  • Reynolds Number
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.