Characteristic Analysis of Exponential Compact Higher Order Schemes for Convection-Diffusion Equations

Y.V.S.S. Sanyasiraju, Nachiketa Mishra

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DOI: 10.4236/ajcm.2011.12005                

Abstract

This paper looks at the development of a class of Exponential Compact Higher Order (ECHO) schemes and attempts to comprehend their behaviour by introducing different combinations of discrete source function and its derivatives. The characteristic analysis is performed for one-dimensional schemes to understand the efficiency of the scheme and a similar analysis has been introduced for higher dimensional schemes. Finally, the developed schemes are used to solve several example problems and compared the error norms and rates of convergence.

Keywords

Exponential Scheme, Compact Higher Order Scheme, Characteristics, Resolving Efficiency, Finite Difference

Conflicts of Interest

The authors declare no conflicts of interest.

References

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