Abstract
This article presents a time-accurate numerical method using high-order accurate compact finite difference scheme for the incompressible Navier-Stokes equations. The method relies on the artificial compressibility formulation, which endows the governing equations a hyperbolic-parabolic nature. The convective terms are discretized with a third-order upwind compact scheme based on flux-difference splitting, and the viscous terms are approximated with a fourth-order central compact scheme. Dual-time stepping is implemented for time-accurate calculation in conjunction with Beam-Warming approximate factorization scheme. The present compact scheme is compared with an established non-compact scheme via analysis in a model equation and numerical tests in four benchmark flow problems. Comparisons demonstrate that the present third-order upwind compact scheme is more accurate than the non-compact scheme while having the same computational cost as the latter.
Original language | English |
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Pages (from-to) | 3201-3213 |
Number of pages | 13 |
Journal | Applied Mathematics and Computation |
Volume | 215 |
Issue number | 9 |
DOIs | |
State | Published - 1 Jan 2010 |
Externally published | Yes |
Bibliographical note
Funding Information:The work of A. Shah was financially supported by CIIT ( IDB-1306 ) and L. Yuan was supported by Natural Science Foundation of China ( G10531080 and G10729101 ) and State Key Program for Developing Basic Sciences ( 2005CB321703 ). We would like to thanks the referees for their comments and suggestions and Prof. Michele Napolitano, Department of Mechanical and Industrial Engineering, University of Bari, Italy for providing his FORTRAN subroutine [42] .
Keywords
- Artificial compressibility method
- Doubly periodic shear layer
- Dual-time stepping
- Flux-difference splitting
- Incompressible Navier-Stokes equation
- Kovasznay flow problem
- Oscillating plate
- Taylor's decaying vortices
- Upwind compact finite difference
ASJC Scopus subject areas
- Computational Mathematics
- Applied Mathematics