Abstract
Numerical experiments with discretization methods on nonuniform grids are presented for the convection-diffusion equation. These show that the accuracy of the discrete solution is not very well predicted by the local truncation error. The diagonal entries in the discrete coefficient matrix give a better clue: the convective term should not reduce the diagonal. Also, iterative solution of the discrete set of equations is discussed. The same criterion appears to be favourable.
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© 1992 Springer Science+Business Media Dordrecht
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Veldman, A.E.P., Rinzema, K. (1992). Playing with nonuniform grids. In: Kuiken, H.K., Rienstra, S.W. (eds) Problems in Applied, Industrial and Engineering Mathematics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2440-9_10
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DOI: https://doi.org/10.1007/978-94-011-2440-9_10
Publisher Name: Springer, Dordrecht
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