High-Temperature Thermal Simulator.
Technical rept. 15 Aug 83-15 Sep 84 on Phase 1,
SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA
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This report describes the results of a study whose purpose was to determine how and to what extent the radiative output of DNAs Thermal Radiation Simulator TRS could be increased. Another purpose was to recommend a program for realizing that higher level of output. This study constituted the first phase of a program whose goals are to create a High Temperature Radiation Simulator HTRS producing A radiative flux exceeding 160 calcm to the second power - sec and A radiation color temperature effectively greater than 4000 deg K. The study consisted of an examination of the pertinent literature and some theoretical analyses. The literature examined dealt primarily with the fundamental features of the combustion of metals with oxygen and the radiative and optical characteristics of metal-oxygen combustion products. The theoretical analyses focused on calculation of temperature and energy released from the combustion of various fuels with oxygen, estimation of radiation from a cloud of hot particulates, determination of the approximate relationships between radiative flux and flame height versus flame velocity, paticle size and flame thickness, interpretation of combustion data to determine the burning rates of metal particles, and a qualitative analysis of the fluid dynamic and temperature structure of the present TRSs aluminum-oxygen flame. Based on the results, a set of techniques was defined which could lead to the attainment of the HTRS goals. Additionally, a program of experimental research was outlined to explore, develop and implement these techniques.
- Test Facilities, Equipment and Methods