Accession Number:

AD0603129

Title:

INSTANTANEOUS LOCAL TEMPERATURES OF AERODYNAMIC DECELERATORS. PART II. THERMAL PROPERTIES,

Descriptive Note:

Rept. for Jul 59-Aug 60,

Corporate Author:

MRD DIV GENERAL AMERICAN TRANSPORTATION CORP NILES ILL

Personal Author(s):

Report Date:

1961-02-01

Pagination or Media Count:

162.0

Abstract:

Measurements were made of the thermal conductivity of the following candidate parachute fabrics nylon, stainless steel, glass, graphite, and AF-1 an organic fiber. Data were obtained with a Cenco-Fitch device in which the effects of compressive load was established. A similarity relation derived from dimensional analysis was applied to these data and resulted in a satisfactory correlation. A new apparatus was developed in order to determine fabric conductivity under varying conditions of temperature 212 to 600F, ambient pressure 15 to 0.048 psia, biaxial tension 0 to 90 ppi, and compression 1 to 10 psi. Initial data collected using the apparatus demonstrated its capabilities and analysis of these data indicate the possibility of further dimensionless correlations in which the effects of biaxial tension may be negligible. Considerably more detailed data will have to be obtained to establish repeatability and verification of these hypotheses. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE