Simulating the dynamics of inextensible vesicles by the penalty immersed boundary method

Yongsam Kim, Ming-Chih Lai*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

In this paper, we develop an immersed boundary (IB) method to simulate the dynamics of inextensible vesicles interacting with an incompressible fluid. In order to take into account the inextensibility constraint of the vesicle, the penalty immersed boundary (pIB) method is used to virtually decouple the fluid and vesicle dynamics. As numerical tests of our current pIB method, the dynamics of single and multiple inextensible vesicles under shear flows have been extensively explored, and compared with the previous literature. The method is also validated by a series of convergence study, which confirms its consistent first-order accuracy on the velocity field, the vesicle configuration, the vesicle area and the perimeter errors. In addition, the method is also applied to study a binary-component vesicle problem.

Original languageEnglish
Pages (from-to)4840-4853
Number of pages14
JournalJournal of Computational Physics
Volume229
Issue number12
DOIs
StatePublished - 1 Jan 2010

Keywords

  • Binary-component vesicles
  • Inextensible vesicles
  • Penalty immersed boundary method

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