Volume 17, Issue 4
Lattice Boltzmann Simulation of Droplet Formation in Non-Newtonian Fluids

Y. Shi & G. H. Tang

Commun. Comput. Phys., 17 (2015), pp. 1056-1072.

Published online: 2018-04

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  • Abstract

Newtonian and non-Newtonian dispersed phase droplet formation in nonNewtonian continuous phase in T-junction and cross junction microchannels are investigated by the immiscible lattice BGK model. The effects of the non-Newtonian fluid power-law exponent, viscosity and interfacial tension on the generation of the droplet are studied. The final droplet size, droplet generation frequency, and detachment point of the droplet change with the power-law exponent. The results reveal that it is necessary to take into account the non-Newtonian rheology instead of simple Newtonian fluid assumption in numerical simulations. The present analysis also demonstrates that the lattice Boltzmann method is of potential to investigate the non-Newtonian droplet generation in multiphase flow.

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@Article{CiCP-17-1056, author = {}, title = {Lattice Boltzmann Simulation of Droplet Formation in Non-Newtonian Fluids}, journal = {Communications in Computational Physics}, year = {2018}, volume = {17}, number = {4}, pages = {1056--1072}, abstract = {

Newtonian and non-Newtonian dispersed phase droplet formation in nonNewtonian continuous phase in T-junction and cross junction microchannels are investigated by the immiscible lattice BGK model. The effects of the non-Newtonian fluid power-law exponent, viscosity and interfacial tension on the generation of the droplet are studied. The final droplet size, droplet generation frequency, and detachment point of the droplet change with the power-law exponent. The results reveal that it is necessary to take into account the non-Newtonian rheology instead of simple Newtonian fluid assumption in numerical simulations. The present analysis also demonstrates that the lattice Boltzmann method is of potential to investigate the non-Newtonian droplet generation in multiphase flow.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.2014.m333}, url = {http://global-sci.org/intro/article_detail/cicp/11001.html} }
TY - JOUR T1 - Lattice Boltzmann Simulation of Droplet Formation in Non-Newtonian Fluids JO - Communications in Computational Physics VL - 4 SP - 1056 EP - 1072 PY - 2018 DA - 2018/04 SN - 17 DO - http://dor.org/10.4208/cicp.2014.m333 UR - https://global-sci.org/intro/article_detail/cicp/11001.html KW - AB -

Newtonian and non-Newtonian dispersed phase droplet formation in nonNewtonian continuous phase in T-junction and cross junction microchannels are investigated by the immiscible lattice BGK model. The effects of the non-Newtonian fluid power-law exponent, viscosity and interfacial tension on the generation of the droplet are studied. The final droplet size, droplet generation frequency, and detachment point of the droplet change with the power-law exponent. The results reveal that it is necessary to take into account the non-Newtonian rheology instead of simple Newtonian fluid assumption in numerical simulations. The present analysis also demonstrates that the lattice Boltzmann method is of potential to investigate the non-Newtonian droplet generation in multiphase flow.

Y. Shi & G. H. Tang. (2020). Lattice Boltzmann Simulation of Droplet Formation in Non-Newtonian Fluids. Communications in Computational Physics. 17 (4). 1056-1072. doi:10.4208/cicp.2014.m333
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