Accession Number:
AD0686405
Title:
SAMPLING PROBE FOR INSTANTANEOUS MASS SPECTROMETRIC ANALYSIS OF RAREFIED ENTHALPY FLOW
Descriptive Note:
Final rept. 1 Jul 1966-30 Sep 1968
Corporate Author:
ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN
Personal Author(s):
Report Date:
1969-04-01
Pagination or Media Count:
44.0
Abstract:
An aerodynamically shaped probe was developed for instantaneous mass spectrometric analyses of gas samples taken from low density, high enthalpy, hypersonic flows. The requisite .00001 torr operating pressure for a quadrupole mass spectrometer mounted in the water-cooled probe was established and maintained by a liquid-hydrogen cryopump. During an initial series of 5-min tests, the detected composition of an arc-heated airflow with a stagnation condition of approximately 10 atm at 3000K agreed well with a nonequilibrium flow expansion calculation.
Descriptors:
Subject Categories:
- Aerodynamics
- Fluid Mechanics
- Thermodynamics