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Thermal Radiation Analysis System (TRASYS) User's Manual.


N7571700

Publication Date 1973
Personal Author Jensen, C. L.; Goble, R. G.
Page Count 278
Abstract The Thermal Radiation Analyzer System (TRASYS) program marks the first instance that thermal radiation analysis has been put on the same basis as thermal analysis using program systems such as MITAS and SINDA. As with these thermal analyzer programs, the user is provided the powerful options of writing his own executive, or driver logic and choosing, among several available options, the most desirable solution technique(s) for the problem at hand. In addition, many features never before available in a single radiation analysis program are provided. Among the more important are: 1000 node problem size capability with shadowing by intervening opaque or semi-transparent surfaces; choice of diffuse, specular or diffuse/specular radiant interchange solutions; capability for time variant geometry in orbit; choice of analytically determined or externally supplied shadow data for environmental flux calculations; form factors and environmental fluxes computed using an internally-optimized number of surface grid elements, selected on the basis of user-supplied accuracy criteria; a general edit capability for updating thermal radiation model data stored on tape; a plot package that provides a pictorial representation of the user's geometry.
Keywords
  • Thermal radiation
  • Computer programming
  • Fortran
  • Plotting
  • Heat transfer
  • Programming manuals
  • Remote sensing
  • TRASYS computer program
Source Agency
  • National Aeronautics and Space Administration
NTIS Subject Category
  • 62B - Computer Software
Corporate Authors Martin Marietta Aerospace, Denver, Colo. Denver div.
Document Type Technical Report
NTIS Issue Number 197803
Contract Number
  • NAS9-13033
Thermal Radiation Analysis System (TRASYS) User's Manual.
Thermal Radiation Analysis System (TRASYS) User's Manual.
N7571700

  • Thermal radiation
  • Computer programming
  • Fortran
  • Plotting
  • Heat transfer
  • Programming manuals
  • Remote sensing
  • TRASYS computer program
  • National Aeronautics and Space Administration
  • 62B - Computer Software
  • NAS9-13033
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