Accession Number:

AD0632514

Title:

INSULATIVE PERFORMANCE OF SELECTED ABLATIVE MATERIALS IN A LOW ENTHALPY HYPERSONIC AIRSTREAM

Descriptive Note:

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1966-05-01

Pagination or Media Count:

22.0

Abstract:

Tests were conducted to investigate the insulative performance of selected ablative materials when exposed to a relatively low enthalpy hypersonic airstream. Samples of cork, an elastomeric shield material, phenolic glass containing a buton resin, and phenolic glass, mounted on the surface of a sharp flat plate, were injected into a Mach 10 airstream at 15- and 25-deg angles of attack. The model was tested at a high free-stream Reynolds number, 2,200,000 per foot, to produce turbulent flow over the samples. The test results, which consisted of back surface temperature histories on the 0.15-in. -thick samples, showed that cork provided the greatest heat protection.

Subject Categories:

  • Wood, Paper and Related Forestry Products
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE