A Matrix-free Implicit Iterative Solver for Compressible Flow Problems
نویسنده
چکیده
A b s t r a c t . A procedure for soìving nonìinear time-marching problems is presented. The nonsymmetric systems of equations arising from Newton-type linearizations are solved using an iterativestrategy based on the Generalized Minimal RESidual (GMRES) algorithm. Matrix-free techniques ìeading to reduction in Storage are presented. Incorporation of a linesearch algorithm in the Newton-GMRES scheme is discussed. An automatic time-incrcment control strategy is developed to increase the stability of the time-marching process. High-speed flow computations demonstrate the effectiveness of these aìgorithms.
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