Pruning to increase Taylor dispersion in Physarum polycephalum networks.

Marbach, S.; Alim, Karen; Andrew, Natalie; Pringle, A.; Brenner, M. P.

doi:10.1103/PhysRevLett.117.178103

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Pruning to increase Taylor dispersion in Physarum polycephalum networks.

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Alim, Karen
Max Planck Research Group Biological Physics and Morphogenesis, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Andrew, Natalie
Max Planck Research Group Biological Physics and Morphogenesis, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.178103
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Citation

Marbach, S., Alim, K., Andrew, N., Pringle, A., & Brenner, M. P. (2016). Pruning to increase Taylor dispersion in Physarum polycephalum networks. Physical Review Letters, 117(17): 178103. doi:10.1103/PhysRevLett.117.178103.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-BC96-E

Abstract

How do the topology and geometry of a tubular network affect the spread of particles within fluid flows? We investigate patterns of effective dispersion in the hierarchical, biological transport network formed by Physarum polycephalum. We demonstrate that a change in topology—pruning in the foraging state—causes a large increase in effective dispersion throughout the network. By comparison, changes in the hierarchy of tube radii result in smaller and more localized differences. Pruned networks capitalize on Taylor dispersion to increase the dispersion capability.