Madzvamuse, Anotida and Chung, Andy H W (2016) The bulk-surface finite element method for reaction-diffusion systems on stationary volumes. Finite Elements in Analysis and Design, 108. pp. 9-21. ISSN 0168-874X
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Abstract
In this work we present the bulk-surface finite element method (BSFEM) for solving coupled systems of bulk-surface reaction-diffusion equations (BSRDEs) on stationary volumes. Such systems of coupled bulk-surface partial differential equations arise naturally in biological applications and fluid dynamics, for example, in modelling of cellular dynamics in cell motility and transport and diffusion of surfactants in two phase flows. In this proposed framework, we define the surface triangulation as a collection of the faces of the elements of the bulk triangulation whose vertices lie on the surface. This implies that the surface triangulation is the trace of the bulk triangulation. As a result, we construct two finite element spaces for the interior and surface respectively. To discretise in space we use piecewise bilinear elements and the implicit second order fractional-step $\theta$ scheme is employed to discretise in time. Furthermore, we use the Newton method to treat the nonlinearities. The BSFEM applied to a coupled system of BSRDEs reveals interesting patterning behaviour. For a set of appropriate model parameter values, the surface reaction-diffusion system is not able to generate patterns everywhere in the bulk except for a small region close to the surface while the bulk reaction-diffusion system is able to induce patterning almost everywhere. Numerical experiments are presented to reveal such patterning processes associated with reaction-diffusion theory.
Item Type: | Article |
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Keywords: | Bulk-surface reaction-diffusion systems, bulk-surface finite elements, pattern formation, finite elements |
Schools and Departments: | School of Mathematical and Physical Sciences > Mathematics |
Subjects: | Q Science Q Science > QA Mathematics Q Science > QA Mathematics > QA0297 Numerical analysis |
Depositing User: | Anotida Madzvamuse |
Date Deposited: | 05 Oct 2015 09:31 |
Last Modified: | 31 Oct 2017 12:36 |
URI: | http://srodev.sussex.ac.uk/id/eprint/56989 |
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📧 Request an updateProject Name | Sussex Project Number | Funder | Funder Ref |
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Mathematical Modelling and Analysis of Spatial Patterning on Evolving Surfaces | G0872 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/J016780/1 |
Unravelling new mathematics for 3D cell migration | G1438 | LEVERHULME TRUST | RPG-2014-149 |
InCeM: Research Training Network on Integrated Component Cycling in Epithelial Cell Motility | G1546 | Europe Horizon2020 | 642866 |