Accession Number : AD0436700


Title :   THE DIRECT MEASUREMENT OF STATIC TEMPERATURES IN SHOCK TUNNEL FLOWS,


Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV


Personal Author(s) : Muntz,E P ; Abel,Shirley J


Report Date : Apr 1964


Pagination or Media Count : 40


Abstract : A technique for measuring static temperatures in shock tunnel flows is described. It is based on the electronic excitation of nitrogen molecules by a beam of high energy electrons. The resulting spontaneous emisaion or electroluminescence has a spectral intensity distribution that can be related to the gas static temperature. A method has been devised to measure this intensity distribution during the short test time available in a shock tunnel. From such a measurement the gas temperature can be deduced by the methods outlined in the text. The technique has been used to make a number of temperature measurements in a shock tunnel. Some of these are reported for illustrative purposes. (Author)


Descriptors :   *SHOCK TUBES , *TEMPERATURE , HYPERSONIC FLOW , MEASUREMENT , FLUID FLOW , ELECTROLUMINESCENCE , EXCITATION , NITROGEN , ELECTRON BEAMS , CALIBRATION , PHOTOMULTIPLIER TUBES , LENSES , OPTICAL FILTERS , HYPERFINE STRUCTURE , TABLES(DATA)


Distribution Statement : APPROVED FOR PUBLIC RELEASE