GRAY: a program to calculate gray-body radiation heat-transfer view factors from black-body view factors

Technical Report · Mon Jun 14 04:00:00 EDT 1976

DOI:https://doi.org/10.2172/5724910· OSTI ID:5724910

Wong, R. L.

Program GRAY is written to perform the matrix manipulations necessary to convert black-body radiation heat-transfer view factors to gray-body view factors as required by thermal analyzer codes. The black-body view factors contain only geometric relationships. Program GRAY allows the effects of multiple gray-body reflections to be included. The resulting effective gray-body factors can then be used with the corresponding fourth-power temperature differences to obtain the net radiative heat flux. The program is written to accept a matrix input or the card image output generated by the black-body view factor program CNVUFAC. The resulting card image output generated by GRAY is in a form usable by the TRUMP thermal analyzer.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5724910
• Report Number(s): UCID-17277
• Country of Publication: United States
• Language: English

Related Subjects

657006 -- Theoretical Physics-- Statistical Physics & Thermodynamics-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
BLACKBODY RADIATION
COMPUTER CODES
ELECTROMAGNETIC RADIATION
ENERGY TRANSFER
G CODES
HEAT TRANSFER
RADIANT HEAT TRANSFER
RADIATIONS