Edge-based nonlinear diffusion for finite element approximations of convection–diffusion equations and its relation to algebraic flux-correction schemes
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University of Strathclyde; University College London; University of ChesterPublication Date
2016-05-07
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For the case of approximation of convection–diffusion equations using piecewise affine continuous finite elements a new edge-based nonlinear diffusion operator is proposed that makes the scheme satisfy a discrete maximum principle. The diffusion operator is shown to be Lipschitz continuous and linearity preserving. Using these properties we provide a full stability and error analysis, which, in the diffusion dominated regime, shows existence, uniqueness and optimal convergence. Then the algebraic flux correction method is recalled and we show that the present method can be interpreted as an algebraic flux correction method for a particular definition of the flux limiters. The performance of the method is illustrated on some numerical test cases in two space dimensions.Citation
Barrenechea, G., Burman, E. & Karakatsani, F. (2016). Edge-based nonlinear diffusion for finite element approximations of convection–diffusion equations and its relation to algebraic flux-correction schemes. Numerische Mathematik, 135(2), 521-545. http://dx.doi.org/10.1007/s00211-016-0808-zPublisher
SpringerJournal
Numerische MathematikAdditional Links
http://link.springer.com/article/10.1007/s00211-016-0808-zType
ArticleLanguage
enDescription
The final publication is available at Springer via http://dx.doi.org/10.1007/s00211-016-0808-zISSN
0029-599XEISSN
0945-3245ae974a485f413a2113503eed53cd6c53
10.1007/s00211-016-0808-z
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