Abstract
We propose a method with sixth-order accuracy to solve the three-dimensional (3D) convection diffusion equation. We first use a 15-point fourth-order compact discretization scheme to obtain fourth-order solutions on both fine and coarse grids using the multigrid method. Then an iterative mesh refinement technique combined with Richardson extrapolation is used to approximate the sixth-order accurate solution on the fine grid. Numerical results are presented for a variety of test cases to demonstrate the efficiency and accuracy of the proposed method, compared with the standard fourth-order compact scheme.
Original language | English |
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Pages (from-to) | 411-423 |
Number of pages | 13 |
Journal | International Journal of Computer Mathematics |
Volume | 92 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1 2015 |
Bibliographical note
Publisher Copyright:© 2014, © 2014 Taylor & Francis.
Keywords
- 15-point stencil
- Reynolds number
- convection diffusion equation
- multigrid method
- sixth-order compact scheme
ASJC Scopus subject areas
- Computer Science Applications
- Computational Theory and Mathematics
- Applied Mathematics