Use of Direct Solvers for Multidimensional Fluid Flow Computations

摘要

Direct solvers for the inversion of the linearised set of the coupled Navier-Stokes equations are robust and can provide efficient solutions to practical flow problems in a few iterations. However, the required computer storage (and in some cases the CPU time) can be large, especially for three-dimensional flows. Techniques such as domain decomposition and plane-by-plane inversion are feasible but their performance in preserving the robustness is problem dependent and uncertain. This paper reviews some recent research in fluid flow computations using direct solvers. 11 refs. (ERA citation 13:035077)