Partial-moment minimum-entropy models for kinetic chemotaxis equations in one and two dimensions

The aim of this work is to investigate the application of partial moment approximations to kinetic chemotaxis equations in one and two spatial dimensions. Starting with a kinetic equation for the cell densities we apply a half-/quarter-moments method with different closure relations to derive macros...

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Veröffentlicht in:Journal of computational and applied mathematics 2016-11, Vol.306, p.300-315
Hauptverfasser: Ritter, Juliane, Klar, Axel, Schneider, Florian
Format: Artikel
Sprache:eng
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Zusammenfassung:The aim of this work is to investigate the application of partial moment approximations to kinetic chemotaxis equations in one and two spatial dimensions. Starting with a kinetic equation for the cell densities we apply a half-/quarter-moments method with different closure relations to derive macroscopic equations. Appropriate numerical schemes are presented as well as numerical results for several test cases. The resulting solutions are compared to kinetic reference solutions and solutions computed using a full moment method with a linear superposition strategy.
ISSN:0377-0427
1879-1778
DOI:10.1016/j.cam.2016.04.019