This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1038/srep19513 in citations.
Please use the identifier: http://hdl.handle.net/2128/9852 in citations.
Fluid leakage near the percolation threshold
Fluid leakage near the percolation threshold
Percolation is a concept widely used in many fields of research and refers to the propagation of substances through porous media (e.g., coffee filtering), or the behaviour of complex networks (e.g., spreading of diseases). Percolation theory asserts that most percolative processes are universal, tha...
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Personal Name(s): | Dapp, Wolfgang |
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Müser, Martin (Corresponding author) | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | Scientific reports, 6 (2016) S. 19513 |
Imprint: |
London
Nature Publishing Group
2016
|
DOI: |
10.1038/srep19513 |
PubMed ID: |
26839261 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/9852 in citations.
Percolation is a concept widely used in many fields of research and refers to the propagation of substances through porous media (e.g., coffee filtering), or the behaviour of complex networks (e.g., spreading of diseases). Percolation theory asserts that most percolative processes are universal, that is, the emergent powerlaws only depend on the general, statistical features of the macroscopic system, but not on specific details of the random realisation. In contrast, our computer simulations of the leakage through a seal---applying common assumptions of elasticity, contact mechanics, and fluid dynamics---show that the critical behaviour (how the flow ceases near the sealing point) solely depends on the microscopic details of the last constriction. It appears fundamentally impossible to accurately predict from statistical properties of the surfaces alone how strongly we have to tighten a water tap to make it stop dripping and also how it starts dripping once we loosen it again. |