Multiresolution schemes for an extended clarifier‐thickener model | Zendy

Bürger Raimund | Zendy; Ruiz Ricardo | Zendy; Schneider Kai | Zendy; Sepúlveda Mauricio | Zendy

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Multiresolution schemes for an extended clarifier‐thickener model

Author(s) -

Bürger Raimund,

Ruiz Ricardo,

Schneider Kai,

Sepúlveda Mauricio

Publication year - 2007

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.200700805

Subject(s) - discretization , scheme (mathematics) , representation (politics) , clarifier , degenerate energy levels , finite volume method , feature (linguistics) , multiresolution analysis , mathematics , flux (metallurgy) , tree (set theory) , computer science , mathematical analysis , mechanics , physics , artificial intelligence , engineering , materials science , wavelet , philosophy , law , waste management , linguistics , wavelet transform , quantum mechanics , political science , metallurgy , discrete wavelet transform , politics

A fully adaptive finite volume multiresolution scheme for one‐dimensional strongly degenerate parabolic equations with discontinuous flux modelling an extended clarifier‐thickener, is presented. The numerical scheme is based on a finite volume discretization using the approximation of Engquist‐Osher for the flux and explicit time stepping. Cell averages multiresolution scheme speeds up CPU time and memory requirements. A particular feature of our scheme is the storage of the multiresolution representation of the solution in a dynamic graded tree. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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