Application of a generalized minimal residual method to 2D unsteady flowsA generalized minimum residual scheme (GMRES), previously developed for solving nonlinear and linear systems of equations, has been applied to the numerical solution of 2D unsteady compressible flows. It is found that the use of GMRES significantly increases the time step that may be used, compared to noniterative implicit schemes. The feasibility of reducing the memory requirements of the GMRES scheme using a multigrid strategy has also been explored. Several sample steady and unsteady viscous flow applications are presented.
Document ID
19920043647
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hixon, Ray (NASA Langley Research Center Hampton, VA, United States)
Sankar, L. N. (Georgia Institute of Technology Atlanta, United States)