A new mathematical model for chemotactic bacterial colony growth

被引：10

作者：

Alpkvist, E ^{[1
]}

Overgaard, NC ^{[1
]}

Gustafsson, S ^{[1
]}

Heyden, A ^{[1
]}

机构：

[1] Malmo Univ, Sch Technol & Soc, SE-20506 Malmo, Sweden

来源：

WATER SCIENCE AND TECHNOLOGY | 2004年 / 49卷 / 11-12期

关键词：

biofilm; continuum model; diffusion; level set method; mass conservation; simulations;

D O I：

10.2166/wst.2004.0837

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new continuum model for the growth of a single species biofilm is proposed. The geometry of the biofilm is described by the interface between the biomass and the surrounding liquid. Nutrient transport is given by the solution of a semi-linear Poisson equation. In this model we study the morphology of a chemotactic bacterial colony, which grows in the direction of increasing nutrient concentration. Numerical simulations using the level set method and finite difference schemes are presented. The results show rich heterogeneous morphology.

引用

页码：187 / 192

页数：6