Anomalous Dispersion in Pore-Scale Simulations of Two-Phase Flow
Anomalous Dispersion in Pore-Scale Simulations of Two-Phase Flow
复制标题
两相流孔隙尺度模拟中的反常色散
DOI:
10.1007/s11242-018-1155-6
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发表时间:
2019
影响因子:
2.7
通讯作者:
Bolster, Diogo
中科院分区:
文献类型:
--
作者:
Triadis, Dimetre;Jiang, Fei;Bolster, Diogo
We investigate anomalous dispersion in steady-state two-phase flow though a random, artificial porous domain. A natural distribution of trapped wetting-phase fluid was obtained via two-phase lattice Boltzmann drainage simulations. To avoid spurious velocities, accurate inter-pore velocity fields were derived via additional one-phase lattice Boltzmann simulations incorporating slip boundary conditions imposed at various interfaces. The nature of the active dispersion at various timescales was subsequently studied via random walk particle tracking. For our system, results show persistent anomalous dispersion that depends strongly on the assumed molecular diffusivity and the initial positions of tracer particles. Imposing slip versus no-slip boundary conditions on fluid–fluid interfaces made no observable difference to results, indicating that observed anomalous dispersion resulted primarily from the complex flow network induced by the trapped fluid phase.
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DOI:
--
发表时间:
2003
期刊:
Water Resources Research 39-6
影响因子:
--
作者:
Sato;T.;Tanahashi;H.;Loaiciga;H.A
通讯作者:
H.A
影响因子:
2.7
作者:
N. Sund;D. Bolster;S. Mattis;C. Dawson
通讯作者:
C. Dawson
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
T. Le Borgne;D. Bolster;M. Dentz;P. Anna;A. Tartakovsky
通讯作者:
A. Tartakovsky
影响因子:
5.2
作者:
J. Jiménez‐Martínez;M. L. Porter;J. Hyman;J. Carey;H. Viswanathan
通讯作者:
J. Jiménez‐Martínez;M. L. Porter;J. Hyman;J. Carey;H. Viswanathan
影响因子:
5.4
作者:
J. Gómez-Hernández;J. Butler;A. Fiori;D. Bolster;V. Cvetkovic;G. Dagan;D. Hyndman
通讯作者:
J. Gómez-Hernández;J. Butler;A. Fiori;D. Bolster;V. Cvetkovic;G. Dagan;D. Hyndman