Numerical investigation on the bubble rising dynamics in ratchet channels filled with viscoelastic liquids

Y Li, W Yuan, Q Ba, M Mei, W Wu - Physics of Fluids, 2023 - pubs.aip.org
In this paper, we investigated the dynamics of a bubble rising inside ratchet channels filled
with viscoelastic liquids by means of volume-of-fluid-based direct numerical simulations. The …

Experimental study on a zigzagging bubble using tomographic particle image velocimetry with shadow image reconstruction

WX She, Q Gao, ZY Zuo, XW Liao, L Zhao, LX Zhang… - Physics of …, 2021 - pubs.aip.org
For decades, it has been proven by numerous experiments and simulations that a single
bubble freely rises in an unstable path and shape in a surface tension force dominant …

Hydrodynamic interaction and coalescence of two inline bubbles rising in a viscoelastic liquid

W Yuan, M Zhang, BC Khoo, N Phan-Thien - Physics of Fluids, 2021 - pubs.aip.org
In this paper, direct numerical simulations (DNS) are performed to investigate the inline rise
of a pair of three-dimensional (3D) air bubbles in a viscoelastic liquid using the volume-of …

Numerical simulation of the behaviors of single bubble in shear-thinning viscoelastic fluids

J Ji, S Li, P Wan, Z Liu - Physics of Fluids, 2023 - pubs.aip.org
In this paper, the behaviors of single bubble in shear-thinning viscoelastic fluids were
investigated using OpenFOAM. The volume-of-fluid method was used to capture the …

[HTML][HTML] Special issue on the lattice Boltzmann method

C Shu, N Phan-Thien - Physics of Fluids, 2022 - pubs.aip.org
As computer hardware and numerical algorithms are quickly developing at a phenomenal
rate, computational fluid dynamics (CFD) is playing a more important role in the investigation …

On a vertical chain of small bubbles ascending in a viscoelastic fluid

W Yuan, M Zhang, BC Khoo, N Phan-Thien - Physics of Fluids, 2021 - pubs.aip.org
Recently, our direct numerical simulations [Yuan et al.,“Hydrodynamic interaction and
coalescence of two inline bubbles rising in a viscoelastic liquid,” Phys. Fluids 33, 083102 …

Novel lattice Boltzmann method for simulation of strongly shear thinning viscoelastic fluids

R Kellnberger, T Jüngst, S Gekle - International Journal for …, 2024 - Wiley Online Library
The simulation of viscoelastic liquids using the Lattice–Boltzmann method (LBM) in full three
dimensions remains a formidable numerical challenge. In particular the simulation of …

Dynamics of rigid particles in a confined flow of viscoelastic and strongly shear-thinning fluid at very small Reynolds numbers

S Hazra, A Nath, SK Mitra, AK Sen - Physics of Fluids, 2021 - pubs.aip.org
Despite growing interest in the focusing and manipulation of particles in non-Newtonian
fluids in confined flows, the combined effect of viscoelastic and shear-thinning effects on …

On the rising dynamics of a Taylor bubble in sudden/gradual expansion tubes filled with viscoelastic liquids

Y Li, Q Ba, W Yuan, M Mei, J Zhang - Modern Physics Letters B, 2024 - World Scientific
In this paper, the rise behaviors of Taylor bubbles are investigated in sudden/gradual tubes
filled with viscoelastic media via grid adaptive direct numerical simulations (DNS). The …