Calculation of the Boundary-Layer Growth in a Ludwieg Tube

Abstract

Experimental boundary-layer measurements obtained in a Ludwieg tube used to drive a pilot transonic tunnel were compared with values calculated by a procedure developed by E. Becker and with those calculated by a method containing several modifications to Becker's method. The modifications fall into three general categories: the use of a skin-friction law and velocity profile exponent which are more accurate at high Reynolds numbers; treatment of the momentum equation as axisymmetric instead of two-dimensional; and calculation at a specified location other than at the origin of the centered expansion wave.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADA018630

Entities

People

  • James C. Sivells

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Computer Programs
  • Computers
  • Engineering
  • Equations
  • Fluid Dynamics
  • Heat Transfer
  • Layers
  • Mach Number
  • Measurement
  • Reynolds Number
  • Stagnation Pressure
  • Static Pressure
  • Three Dimensional
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.