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In this work, 2D numerical computations are executed for metal foam (MF) pore density gradient insertion inside the vertical channel on thermal characteristics. The domain examined in this study consists of upright channel in which the heater-aluminium plate assemblage is positioned at the centre and in order to boost heat transfer the gradient MF PPI are positioned on either side of the heater-plate assembly. The 10, 20, 30, 45 PPI MF with porosity 0.95, 0.9, 0.92 and 0.9 are considered in this study and are placed in gradient form vertically and horizontally in the channel. The MF province is taken as a homogeneous material with the Darcy Extended Forchheimer (DEF) model to assess the flow physiognomies whereas the Local Thermal Non-equilibrium (LTNE) heat transfer model is used for the thermal exploration. The method accepted in the present inspection is authorized by likening the present outcomes with published works. The effect of the gradient filling of the MF is compared with uniform filling. The combination of 10–20–30–45 PPI filling inside the channel gives highest thermal performance compared to all other gradient fillings considered in the examination. The outcomes of friction factor, Nusselt number and Colburn j factor is presented and discussed.

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Effect of Metal Foam Pore Density Gradient Filling on Hydrodynamic and Thermal Performance—A Numerical Study

  • 会议论文

  • 发表日期：

    2026年

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  • Chetan A. Torase,
  • Akshay S. Sannangi,
  • Abhishek S. Kali,
  • Rohan V. Puthanikar,
  • Banjara Kotresha

摘要

In this work, 2D numerical computations are executed for metal foam (MF) pore density gradient insertion inside the vertical channel on thermal characteristics. The domain examined in this study consists of upright channel in which the heater-aluminium plate assemblage is positioned at the centre and in order to boost heat transfer the gradient MF PPI are positioned on either side of the heater-plate assembly. The 10, 20, 30, 45 PPI MF with porosity 0.95, 0.9, 0.92 and 0.9 are considered in this study and are placed in gradient form vertically and horizontally in the channel. The MF province is taken as a homogeneous material with the Darcy Extended Forchheimer (DEF) model to assess the flow physiognomies whereas the Local Thermal Non-equilibrium (LTNE) heat transfer model is used for the thermal exploration. The method accepted in the present inspection is authorized by likening the present outcomes with published works. The effect of the gradient filling of the MF is compared with uniform filling. The combination of 10–20–30–45 PPI filling inside the channel gives highest thermal performance compared to all other gradient fillings considered in the examination. The outcomes of friction factor, Nusselt number and Colburn j factor is presented and discussed.