Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session G36: Suspensions: Fluid-Particle Interaction
10:35 AM–12:45 PM,
Monday, November 19, 2018
Georgia World Congress Center
Room: B408
Chair: Brian Utter, Bucknell University
Abstract ID: BAPS.2018.DFD.G36.2
Abstract: G36.00002 : A novel immersed boundary-lattice Boltzmann method for fluid-structure interactions involving viscoelastic fluids
10:48 AM–11:01 AM
Presenter:
Jingtao Ma
(The University of New South Wales)
Authors:
Jingtao Ma
(The University of New South Wales)
Fangbao Tian
(The University of New South Wales)
Joseph C.S. Lai
(The University of New South Wales)
John Young
(The University of New South Wales)
This work presents a novel immersed boundary-lattice Boltzmann method for fluid-structure interactions involving viscoelastic fluids. This method has been validated by conducting a few typical viscoelastic flows: 2D lid-driven cavity, a 2D rigid particle migration in Couette flow, a 3D rigid particle rotation in shear flow and a 3D rigid particle sedimentation. The present results show good agreement with previous results from different sources. The present method has been also applied to several problems involving fluid-structure interactions: a 2D elastic capsule deformation in the viscoelastic fluid shear flow, a 3D elastic capsule deformation in the viscoelastic fluid shear flow, and a 3D flexible plate motion in the viscoelastic fluid uniform flow. The results suggest that the viscoelasticity of the fluids has great effects on the behaviours of the elastic capsules and flexible plate.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.G36.2
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