SUPERSONIC FLOW ABOUT TWO-DIMENSIONAL ASYMMETRIC BLUNT BODIES

Abstract

IN Part I, it is shown that application of the Dorodnitsyn-Belotserkovskii (DB) method can be greatly expedited and simplified by introducing a linearization process and a simultaneous stretching of coordinates in the spirit of the PoincareLighthill-Kuo method. The approach eliminates cumbersome iteration previously required by the DB method and standardizes the determination of: (a) successive approximations, and (b) effects of changes in free stream Mach number and body profile for a given approximation. Details of analysis and procedure are presented in connection with the first approximation of the DB method; the extension to subsequent approximations and to axisymmetric problems is outlined. In Part II, a comparison between theory and experiment is instituted for a two-dimensional asymmetric configuration tested in air (gamma equals 1.4) at Mach 8; predicted pressure distributions and shock shapes are in good agreement with measurements. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1960
Accession Number
AD0256183

Entities

People

  • Roberto Vaglio-laurin

Tags

DTIC Thesaurus Topics

  • Agreements
  • Axisymmetric
  • Blunt Bodies
  • Bodies
  • Flow
  • Free Stream
  • Iterations
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Supersonic Flow
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Calculus or Mathematical Analysis
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow