每年出版 12 期
ISSN 打印: 1091-028X
ISSN 在线: 1934-0508
Indexed in
3D NUMERICAL INVESTIGATION OF FLUID FLOW THROUGH OPEN-CELL METAL FOAMS USING MICRO-TOMOGRAPHY IMAGES
摘要
In this research, a 3D simulation of fluid flow in open-cell foams with a porosity percentage of 85, 90, 95, and 98 was performed on the basis of meshing their computed micro-tomography (μCT) images. The finite volume method with a high-quality structured hexahedral element grid was used to discretize the equations. Results show that the pressure gradient (dP/dx) increased by a decrease in porosity, and decreased by an increase in the inlet velocity. Also, by an increase in porosity percentage, the linear and nonlinear term coefficients of the pressure gradient equation (−dP/dx = αu + βu2) vary between 1116 < α < 11595 (kg·m−3·s−1) and 210 < β < 3186 (kg·m−4), respectively By comparing the results obtained from the simulation and the experimental results obtained from other studies, it was specified that if the Reynolds number is less than 1, the flow is in the laminar (or Darcy flow) zone, and a transient flow is attained at Reynolds numbers above. In other words, it can be concluded that the numerical results are found in reasonable agreement with the experimental data.
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Zafari Mohammad, Panjepour Masoud, Davazdah Emami Mohsen, Meratian Mahmood, Microtomography-based numerical simulation of fluid flow and heat transfer in open cell metal foams, Applied Thermal Engineering, 80, 2015. Crossref
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Jafarizade Azade, Panjepour Masoud, Meratian Mahmood, Davazdah Emami Mohsen, Numerical Simulation of Gas/Solid Heat Transfer in Metallic Foams: A General Correlation for Different Porosities and Pore Sizes, Transport in Porous Media, 127, 2, 2019. Crossref