Document Type

Article

Publication Date

2021

DOI

10.1103/PhysRevE.103.023309

Publication Title

Physical Review E

Volume

103

Issue

2

Pages

1-17

Abstract

In this work a quasisteady, dual time-stepping lattice Boltzmann method is proposed for simulation of capsule deformation. At each time step the steady-state lattice Boltzmann equation is solved using the full approximation storage multigrid scheme for nonlinear equations. The capsule membrane is modeled as an infinitely thin shell suspended in an ambient fluid domain with the fluid structure interaction computed using the immersed boundary method. A finite element method is used to compute the elastic forces exerted by the capsule membrane. Results for a wide range of parameters and initial configurations are presented. The proposed method is found to reduce the computational time by a factor of ten.

Comments

© 2021 American Physical Society

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Publisher's version available at: https://doi.org/10.1103/PhysRevE.103.023309

Original Publication Citation

Armstrong, C., & Peng, Y. (2021). Numerical simulations of capsule deformation using a dual time-stepping lattice Boltzmann method. Physical Review E, 103(2), 1-17, Article 023309 https://doi.org/10.1103/PhysRevE.103.023309

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