Accession Number:

ADA000025

Title:

An Interferometric Investigation of Shock Structure and Its Induced Shock-Tube Boundary Layer in Ionized Argon

Descriptive Note:

Technical note

Corporate Author:

AIR FORCE OFFICE OF SCIENTIFIC RESEARCHARLINGTON VA

Personal Author(s):

• Brimelo, Peter I.
• Glass, I. I.

Report Date:

1974-07-01

Pagination or Media Count:

69.0

Abstract:

The structure of ionizing shock waves and their induced boundary layers in argon have been studied experimentally in the UTIAS 4 inch x 7 inch hypervelocity shock tube using dual-wavelength interferometry. The relaxation lengths and transitions of shocks of Mach numbers 16.5 and 13.5 for initial gas pressures of about 5 torr have been measured at 2cm and 8cm, respectively. The transition profiles and relaxation lengths are in reasonably good agreement with analysis.

Descriptors:

• *GAS IONIZATION
• *GAS FLOW
• *SHOCK TUBES
• ATMOSPHERE ENTRY
• SHOCK WAVES
• CANADA
• INTERFEROMETRY
• ARGON

Subject Categories:

• Fluid Mechanics
• Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE