This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1016/j.compfluid.2018.08.024 in citations.
Modeling of capillary-driven flows in axisymmetric geometries
Modeling of capillary-driven flows in axisymmetric geometries
We present an analytical approach, as well as computer simulations based on the free surface lattice-Boltzmann (FSLB) method, in order to model capillary-driven infiltration of liquids into porous structures. The analytical method is an extension of the Lucas-Washburn (LW) equation and applies to ax...
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Personal Name(s): | Chassagne, Romain (Corresponding author) |
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Dörfler, Fabian / Guyenot, Michael / Harting, Jens | |
Contributing Institute: |
Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien; IEK-11 |
Published in: | Computers & fluids, 178 (2019) S. 132 - 140 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2019
|
DOI: |
10.1016/j.compfluid.2018.08.024 |
Document Type: |
Journal Article |
Research Program: |
Solar cells of the next generation |
Publikationsportal JuSER |
We present an analytical approach, as well as computer simulations based on the free surface lattice-Boltzmann (FSLB) method, in order to model capillary-driven infiltration of liquids into porous structures. The analytical method is an extension of the Lucas-Washburn (LW) equation and applies to axisymmetric geometries with a circular cross-section. The treatment of irregular capillaries is achieved by a discretization procedure in which the original geometry is divided into small cylinders. In order to validate the derived analytical equation, we perform FSLB simulations in test geometries which show a good agreement. |