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

Authors

  • Roliza Md Yasin Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA Cawangan Kelantan, Kampus Machang, 18500 Machang, Kelantan, Malaysia
  • Erwan Hafizi Kasiman Department of Hydraulic and Hydrology, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Norsarahaida Saidina Amin cDepartment of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Airil Yasreen Mohd Yassin School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University Malaysia
  • Ahmad Kueh Beng Hong Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Malaysia
  • Norzieha Mustapha Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA Cawangan Kelantan, Kampus Machang, 18500 Machang, Kelantan, Malaysia

DOI:

https://doi.org/10.11113/mjfas.v19n2.2659

Keywords:

ALE-FEM, bifurcation, moving indented wall

Abstract

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.

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Published

18-04-2023