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arXiv · 0805.1567

Transport in networks with multiple sources and sinks

Shai Carmi·Zhenhua Wu·Shlomo Havlin·H. Eugene Stanley
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Abstract

We investigate the electrical current and flow (number of parallel paths) between two sets of n sources and n sinks in complex networks. We derive analytical formulas for the average current and flow as a function of n. We show that for small n, increasing n improves the total transport in the network, while for large n bottlenecks begin to form. For the case of flow, this leads to an optimal n* above which the transport is less efficient. For current, the typical decrease in the length of the connecting paths for large n compensates for the effect of the bottlenecks. We also derive an expression for the average flow as a function of n under the common limitation that transport takes place between specific pairs of sources and sinks.

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Shai Carmi, Zhenhua Wu, Shlomo Havlin, H. Eugene Stanley. 2008-11-17. Transport in networks with multiple sources and sinks. https://doi.org/10.1209/0295-5075%2F84%2F28005

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