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

被引：0

作者：

Department of Mechanical Engineering, MVGR College Chintalavalasa, Vizianagaram 535005, India ^{[1
]}

不详 ^{[2
]}

机构：

[1] Department of Mechanical Engineering, MVGR College Chintalavalasa

[2] GIW Industries Inc., Grovetown

来源：

Prog. Comput. Fluid Dyn. | 2007年 / 6卷 / 323-336期

关键词：

GMRES; Multi-size particulate flow; Multifrontal; Preconditioner; Rotating channel; UMFPACK; 4.4;

D O I：

10.1504/PCFD.2007.014682

中图分类号：

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 multifrontal (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 multifrontal 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. Copyright © 2007 Inderscience Enterprises Ltd.

引用

页码：323 / 336

页数：13