Solution of Linear Equation Systems
In this chapter, methods of solving the algebraic equation systems resulting from discretization of transport equations are described. Direct methods are briefly described, but the major part of the chapter is devoted to iterative solution techniques. Incomplete lower-upper decomposition, conjugate gradient and multigrid methods are given special attention. Approaches to solving coupled and non-linear systems are also described, including the issues of under-relaxation and convergence criteria. Various solvers can be downloaded from the book web-site (www.cfd-peric.de).