FURTHER EXPERIMENTAL AND THEORETICAL STUDIES OF UNDEREXPANDED JETS NEAR THE MACH DISC

Abstract

Results of experimental flow visualization studies in the neighborhood of the Mach disc in under expanded, inviscid jets are presented. The cases include sonic orifices, conical nozzles, Foelsch coordinate nozzles, and some full scale, in flight missile data. The exit to ambient static pressure ratios go up to 300 and the ambient Mach numbers go up to 4.3. In each case studied the method of Bowyer, D'Attorre, and Yoshihara appears to provide a reasonable technique for predicting the size and axial position of the Mach disc. In addition it is shown that the curvature in the Mach disc must be considered if a consistent triple point calculation is to be made.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1964
Accession Number
AD0444088

Entities

People

  • F. Harshbarger
  • L. D'attorre

Organizations

  • General Dynamics

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Cameras
  • Combustion
  • Flow
  • Flow Fields
  • Flow Visualization
  • Fluid Flow
  • Gages
  • Mach Number
  • Nozzles
  • Photographs
  • Photography
  • Rocket Engines
  • Space Sciences
  • Standards
  • Static Pressure
  • Strain Gages

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Combustion and Flow Dynamics.