Lattice Boltzmann study of effective viscosities of porous particle suspensions
Lattice Boltzmann study of effective viscosities of porous particle suspensions
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多孔颗粒悬浮液有效粘度的格子玻尔兹曼研究
DOI:
10.1016/j.compfluid.2019.01.013
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发表时间:
2019-03
期刊:
影响因子:
--
通讯作者:
X-Y Lu
中科院分区:
文献类型:
--
作者:
X.C. Liu;H.B. Huang;X-Y Lu
The effective viscosities of dilute and semi-dilute suspensions in a two-dimensional shear flow are studied using the lattice Boltzmann method. The suspensions contain non-Brownian hard circular buoyant porous particles. Here a more accurate formula for intrinsic viscosity as a function of Darcy number (Da) for the wholeDaregime is proposed through our numerical result. The effects of fluid inertia, permeability of the particle, and confinement of the bounding walls are investigated. It is found that for the cases with a smallDa, the effective viscosity significantly increases with confinement and fluid inertia. However, for the cases with a largeDa, the confinement ratio and fluid inertia have very minor effect. Moreover, for semi-dilute suspensions, the permeability of the particle weakens the effect of the hydrodynamic interactions between particles on the relative viscosityηrand makesηrdecrease. The above phenomena can be well understood through quantifying the disturbance of the porous particle to the flow.
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影响因子:
2.8
作者:
Huilin Ye;Haibo Huang;Y. Sui;Xi-yun Lu
通讯作者:
Huilin Ye;Haibo Huang;Y. Sui;Xi-yun Lu
DOI:
10.1016/j.ijheatmasstransfer.2017.09.060
发表时间:
2018
影响因子:
5.2
作者:
Ao Xu;Le Shi;T. Zhao
通讯作者:
Ao Xu;Le Shi;T. Zhao
DOI:
10.1016/j.ijheatfluidflow.2012.03.002
发表时间:
2012-08
影响因子:
2.6
作者:
P. Yu;Yan Zeng;T. Lee;Xiao Chen;H. Low
通讯作者:
P. Yu;Yan Zeng;T. Lee;Xiao Chen;H. Low
影响因子:
2.4
作者:
Einstein, A
通讯作者:
Einstein, A
影响因子:
2.4
作者:
C. M. Zettner;M. Yoda
通讯作者:
C. M. Zettner;M. Yoda