Incomplete factorization for finite element methods

✍ Scribed by George Zyvoloski

• Publisher: John Wiley and Sons
• Year: 1986
• Tongue: English
• Weight: 608 KB
• Volume: 23
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/nme.1620230608

✦ Synopsis

An incomplete factorization iterative scheme with ORTHOMIN acceleration is evaluated for threedimensional finite element applications. Both heat conduction and combined heat and fluid flow are investigated. Computational efficiency is investigated for both linear (8 node) and quadratic (27 node) elements as well as for various degrees of LU Decomposition. The factorization schemes worked well with both types of elements, and a variable factorization scheme, which distributes the level of factorization, performed well on difficult heat and fluid flow problems.