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Title: CHAPARRAL: A library for solving large enclosure radiation heat transfer problems

CHAPARRAL: A library for solving large enclosure radiation heat transfer problems Large, three-dimensional enclosure radiation beat transfer problems place a heavy demand on computing resources such as computational cycles, memory requirements, disk I/O, and disk space usage. This is primarily due to the computational and memory requirements associated with the view factor calculation and subsequent access of the view factor matrix during solution of the radiosity matrix equation. This is a fundamental problem that constrains Sandia`s current modeling capabilities. Reducing the computational and memory requirements for calculating and manipulating view factors would enable an analyst to increase the level of detail at which a body could be modeled and would have a major impact on many programs at Sandia such as weapon and transportation safety programs, component survivability programs, energy programs, and material processing programs. CHAPARRAL is a library package written to address these problems and is specifically tailored towards the efficient solution of extremely large three-dimensional enclosure radiation heat transfer problems.
Authors:
Publication Date:
OSTI Identifier:120875
Report Number(s):SAND--95-2049
ON: DE96001863; TRN: 95:007866
DOE Contract Number:AC04-94AL85000
Resource Type:Technical Report
Data Type:
Resource Relation:Other Information: PBD: Aug 1995
Research Org:Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org:USDOE, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; C CODES; COMPUTER PROGRAM DOCUMENTATION; RADIANT HEAT TRANSFER; COMPUTERIZED SIMULATION; THREE-DIMENSIONAL CALCULATIONS; FINITE ELEMENT METHOD