Abstract
A two-dimensional single species biofilm model is solved under nutrient-rich and nutrient-low conditions to study the effect of mesoscale substratum roughness on biofilm growth activity. Our results indicate that under nutrient-rich conditions, the substratum roughness does not have a pronounced effect on the substrate fluxes and on biofilm growth, leading to formation of biofilms as compact layers. However, under low substrate conditions, substratum roughness has a pronounced effect on both biofilm activity and structure. The overall conclusion is that under low substrate conditions full 2D or 3D simulations are needed to accurately simulate biofilms on irregular surfaces, whereas under nutrient rich conditions, the assumption of flat substrata and 1D models might provide a sufficiently good approximation.
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Ali, M.A., Eberl, H.J., Sudarsan, R. (2018). A Simulation Study of the Effect of Meso-Scopic Sinusoidal Surface Roughness on Biofilm Growth. In: Kilgour, D., Kunze, H., Makarov, R., Melnik, R., Wang, X. (eds) Recent Advances in Mathematical and Statistical Methods . AMMCS 2017. Springer Proceedings in Mathematics & Statistics, vol 259. Springer, Cham. https://doi.org/10.1007/978-3-319-99719-3_29
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