Imperial College London
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ProfessorMartinBlunt

Faculty of Engineering, Department of Earth Science & Engineering

Chair in Flow in Porous Media
 
 
 
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Contact

 

+44 (0)20 7594 6500m.blunt Website

 
 
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Location

 

2.38ARoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Akai:2018:10.1016/j.advwatres.2018.03.014,
author = {Akai, T and Bijeljic, B and Blunt, MJ},
doi = {10.1016/j.advwatres.2018.03.014},
journal = {Advances in Water Resources},
pages = {56--66},
title = {Wetting boundary condition for the color-gradient lattice Boltzmann method: Validation with analytical and experimental data},
url = {http://dx.doi.org/10.1016/j.advwatres.2018.03.014},
volume = {116},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In the color gradient lattice Boltzmann model (CG-LBM), a fictitious-density wetting boundary condition has been widely used because of its ease of implementation. However, as we show, this may lead to inaccurate results in some cases. In this paper, a new scheme for the wetting boundary condition is proposed which can handle complicated 3D geometries. The validity of our method for static problems is demonstrated by comparing the simulated results to analytical solutions in 2D and 3D geometries with curved boundaries. Then, capillary rise simulations are performed to study dynamic problems where the three-phase contact line moves. The results are compared to experimental results in the literature (Heshmati and Piri, 2014). If a constant contact angle is assumed, the simulations agree with the analytical solution based on the Lucas–Washburn equation. However, to match the experiments, we need to implement a dynamic contact angle that varies with the flow rate.
AU  - Akai,T
AU  - Bijeljic,B
AU  - Blunt,MJ
DO  - 10.1016/j.advwatres.2018.03.014
EP  - 66
PY  - 2018///
SN  - 0309-1708
SP  - 56
TI  - Wetting boundary condition for the color-gradient lattice Boltzmann method: Validation with analytical and experimental data
T2  - Advances in Water Resources
UR  - http://dx.doi.org/10.1016/j.advwatres.2018.03.014
UR  - http://hdl.handle.net/10044/1/58841
VL  - 116
ER  -
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