Numerical Study of Particle Behaviour in a Mixed Convection Channel Flow with Cavity using Cubic Interpolation Pseudo-Particle Navier-Stokes Formulation Method

Authors

  • Ahmad Sofianuddin A. Sahak Malaysia – Japan International Institute of Technology (MJIIT), University Teknologi Malaysia, Jalan Sultan Yahya Petra,54100 Kuala Lumpur, Malaysia
  • Nor Azwadi Che Sidik Malaysia – Japan International Institute of Technology (MJIIT), University Teknologi Malaysia, Jalan Sultan Yahya Petra,54100 Kuala Lumpur, Malaysia
  • Siti Nurul Akmal Yusof Malaysia – Japan International Institute of Technology (MJIIT), University Teknologi Malaysia, Jalan Sultan Yahya Petra,54100 Kuala Lumpur, Malaysia
  • Mahmoud Ahmed Alamir College of Science and Engineering, Flinders University, Clovelly Park, Adelaide, SA 5042, Australia

Keywords:

CIP method, cavity, aspect ratio, particles

Abstract

Cubic Interpolation Pseudo-Particle (CIP) method was applied to solve the hyperbolic, advective term of vorticity transport Navier-Stokes equations coupled with energy equation in the two-dimensional, incompressible and laminar flow over the cavity and Eulerian-Lagrangian approach to model the dispersion of the particles inside the cavity. Flow inside cavity with an aspect ratio (AR) range from 0.5 to 4, and Reynolds number (Re) from 50 to 1000 was investigated. Validation studies were conducted numerically by evaluating the CIP method on the flow in the channel with the cavity. Qualitative comparisons between the numerical and experimental results were evaluated and presented. Even though the presence of heat in the cavity has changed the flow structure inside the cavity due to buoyancy changes from temperature variations, it does not significantly affect the particles removal from the cavity. Furthermore, the dependency of particles dispersion on its density can also be observed. It was found that the  particles with density ratio,  = 1.0 and 2.0 are easily affected by the flow field in the cavity compared to particles with  = 5.0 and 10.0. As for particles with = 2.0 and 5.0, they are hardly affected by vertical flow fields resulting from inertial forces from the particles themselves. Therefore, particles tend to drag down and settle due to the gravitational force occurred instead of being removed outside the cavity. As the density ratio increased from 2.0 to 10.0, the percentage of particles removal decreased from 20% to 14%. However, the percentage of particles deposited had increased from 41% to 86%.

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Published

2020-12-25

How to Cite

A. Sahak, A. S., Che Sidik, N. A., Yusof, S. N. A., & Alamir, M. A. (2020). Numerical Study of Particle Behaviour in a Mixed Convection Channel Flow with Cavity using Cubic Interpolation Pseudo-Particle Navier-Stokes Formulation Method. Journal of Advanced Research in Numerical Heat Transfer, 1(1), 32–51. Retrieved from https://akademiabaru.com/submit/index.php/arnht/article/view/1121

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