Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports
Author:
Publisher:
Total Pages: 1460
Release: 1991
Genre: Aeronautics
ISBN:

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

NASA Scientific and Technical Reports

NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
Total Pages: 428
Release: 1968
Genre: Aeronautics
ISBN:

Reaction Rates for High-temperature Air with Carbon and Sodium Impurities

Reaction Rates for High-temperature Air with Carbon and Sodium Impurities
Author: Mina L. Carnicom
Publisher:
Total Pages: 156
Release: 1968
Genre: Gases at high temperatures
ISBN:

The values used by a number of investigators for the rate constants of high-temperature ([greater than or equal to]1000©K) homogeneous gaseous reactions involving species of the elements nitrogen, oxygen, carbon, and sodium have been compiled and are presented in tabular form. Included are reactions involving neutral species, charged species, free electrons, some species in excited electronic or vibrational states, and radiative processes.

SCR.

SCR.
Author:
Publisher:
Total Pages: 156
Release: 1968
Genre: Nuclear energy
ISBN:

Free-stream Temperature, Density, and Pressure Measurements in an Expansion Tube Flow

Free-stream Temperature, Density, and Pressure Measurements in an Expansion Tube Flow
Author: Kenneth V. Haggard
Publisher:
Total Pages: 60
Release: 1973
Genre: Expansion tubes (Hypersonic wind tunnels)
ISBN:

An experimental study was conducted to determine test-flow conditions in the Langley pilot model expansion tube. Measurements of temperature, density, wall pressure, pitot pressure, and shock and interface velocities were compared with theoretical calculations based on various models of the flow cycle. The vibrational temperature and integrated density of the molecular oxygen component of the flow were measured by use of vacuum ultraviolet absorption techniques. These measurements indicate both the presence and possible degree of nonequilibrium in the flow. Data are compared with several simplified models of the flow cycle, and data trends are discussed.