Effect of Wall Oscillation Period on Fluid Flow in Branched Channel with a Moving Indentation

Roliza Md Yasin*, Erwan Hafizi Kasiman, Norsarahaida Saidina Amin, Airil Yasreen Mohd Yassin, Ahmad Kueh Beng Hong, Norzieha Mustapha

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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The numerical simulation of two-dimensional fluid flow in T-shaped and Y-shaped channels having a single moving indented wall is performed by the finite element method in the Arbitrary Lagrangian-Eulerian frame. The motion of the indented wall is defined as a hyperbolic function, and it is located at a small segment at the bottom wall in the parent channel. The smallest value of the wall oscillation period causes the waviest core flow in the main channel, resulting in bigger vortices and greater flow separation region in the branches, especially during the outward indentation motion. This flow disturbance pattern is found more severe in T-channel as compared to that of in Y-channel.

Original languageEnglish
Pages (from-to)142-153
Number of pages12
JournalMalaysian Journal of Fundamental and Applied Sciences
Issue number2
Publication statusPublished - Mar 2023


  • bifurcation
  • moving indented wall

ASJC Scopus subject areas

  • General Chemistry
  • General Mathematics
  • General Biochemistry,Genetics and Molecular Biology
  • General Agricultural and Biological Sciences
  • General Physics and Astronomy


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