Application of multifrontal and GMRES solvers for multi-size particulate flow in rotating channels

被引：0
|
作者：
Gupta, Pankaj K.
Pagalthivarthi, Krishnan V. [1 ]
机构：
[1] GIW Ind Inc, Grovetown, GA 30813 USA
[2] MVGR Coll Chintalavalasa, Dept Mech Engn, Vizianagaram 535005, India
来源：
PROGRESS IN COMPUTATIONAL FLUID DYNAMICS | 2007年 / 7卷 / 06期
关键词：
GMRES; preconditioner; UMFPACK; 4.4; multiftontal; multi-size particulate flow; rotating channel;
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The study deals with the quantification of computational demands of predicting volume-averaged multi-size particulate flow in rotating 2D channels using Galerkin finite element method. The performances of multiftontal (UMFPACK 4.4) direct solver and preconditioned recursive Generalised Minimum Residual (GMRES) solver are compared. For problems with large number of elements, GMRES is found to take 70-80% less computation time than the direct multiftontal solver. With a view to studying 3D problems, comparisons between preconditioned ILU(k) and GMRES are also included for non-linear heat conduction. Results show that GMRES could be competitive for 3D problems as well under certain circumstances.
引用
收藏
页码：323 / 336
页数：14
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