Computer implementation, accuracy, and timing of radiation view-factor algorithms

Conference · Fri Jul 01 00:00:00 EDT 1983

OSTI ID:5778952

Shapiro, A B

The three-dimensional finite element thermal analysis of enclosure radiation problems requires the calculation of the geometric surface to surface radiation view factors. The view factors can be calculated by either area or line integration algortihms. This paper addresses the implementation, accuracy and computational time involved in using these algorithms. Additionally, an algorithm to identify shadowing surfaces and methods to adjust the calculated view factors for increased accuracy are presented.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5778952
• Report Number(s): UCRL-89602; CONF-831111-8; ON: DE83017618
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ACCURACY
ALGORITHMS
ENERGY TRANSFER
HEAT TRANSFER
MATHEMATICAL LOGIC
RADIANT HEAT TRANSFER
SHADING