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https://soar-ir.repo.nii.ac.jp/oai
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Lattice Boltzmann Simulation of Two-Phase Viscoelastic Fluid Flows
Yoshino, M
Toriumi, Y
Arai, M
Lattice Boltzmann Method (LBM)
Two Phase Flow
Viscoelastic Fluid
Shear Flow
Rising Bubble
A lattice Boltzmann method (LBM) for two-phase viscoelastic fluid flows is proposed. The method is mainly an extension of the LBM for two-phase flows with large density differences proposed by Inamuro et al. [Journal of Computational Physics Vol.198, No.2 (2004), pp.628–644]. The viscoelastic effects are introduced by the constitutive equation based on the Maxwell model, which has a spring and a dashpot connected with each other in series. The method is applied to simulations of a drop under shear flow in viscoelastic fluids and of a bubble rising in viscoelastic fluids. In the simulation of drop deformation under shear flows, the effects of viscoelasticity on the deformation and orientation angle are evaluated. In the simulation of bubble rising in viscoelastic fluids, a cusp configuration at the trailing edge is investigated and compared with the theoretical prediction and other numerical results.
Article
Journal of Computational Science and Technology 2(2):330-340
The Japan Society of Mechanical Engineers
2008-07-31
eng
journal article
VoR
http://hdl.handle.net/10091/1117
https://soar-ir.repo.nii.ac.jp/records/12657
https://doi.org/10.1299/jcst.2.330
10.1299/jcst.2.330
1881-6894
Journal of Computational Science and Technology
2
2
330
340
https://soar-ir.repo.nii.ac.jp/record/12657/files/2_330.pdf
application/pdf
779.8 kB
2015-09-28