Experiment and Lattice Boltzmann numerical study on nanofluids flow in a micromodel as porous medium |
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| Institution: | 1. Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;2. Modern Manufacturing Technologies Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran;1. Department of Physics, Razi University, Kermanshah, Iran;2. Department of Physics, University of Missouri, Columbia, Missouri 65201, USA;3. Department of Physics, University of Colorado, Colorado Springs, CO 80918, USA;1. School of Computer Science, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China;2. School of Science, East China Jiaotong University, Nanchang 330013, China;1. School of Photovoltaic and Rene Energy Engineering, University of New South Wales, Sydney 2052, Australia;2. School of Physics, University of New South Wales, Sydney 2052, Australia;1. Nonlinear Optics Research Laboratory, Department of Physics, Manipal Institute of Technology, Manipal University, Manipal 576104, Karnataka, India;2. Department of Physics, School of Engineering and Technology, Jain University, Jakkasandra Post, Bengaluru 562112, Karnataka, India;3. Institute of Optoelectronics and Measuring Systems, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, PL-42-201 Czestochowa, Poland;4. University of Mohammed V, Faculty of Sciences, Materials Physics Laboratory, P. B. 1014, Rabat, Morocco;5. Mircortron Centre, Department of Physics, Mangalore University, Mangalore, Karnataka 574199, India;6. Department of Physics, NMAM Institute of Technology, Nitte 574110, India;1. Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería Química, Ciudad Universitaria, San Manuel, Puebla, Código Postal 72570, Mexico;2. Universidad de Santiago de Chile, Facultad de Química y Biología, Laboratorio de Química Teórica, Santiago, Chile;3. Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería, Apdo. Postal J-39, Puebla, Pue. 72570, Mexico;4. Universidad Nacional Autónoma de México-Departamento de Física y Química Teórica, DEPg-Facultad de Química, México D.F., C.P. 04510, Mexico |
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| Abstract: | Al2O3 nanofluids flow has been studied in etched glass micromodel which is idealization of porous media by using a pseudo 2D Lattice Boltzmann Method (LBM). The predictions were compared with experimental results. Pressure drop / flow rate relations have been measured for pure water and Al2O3 nanofluids. Because the size of Al2O3 nanoparticles is tiny enough to permit through the pore throats of the micromodel, blockage does not occur and the permeability is independent of the nanofluid volume fraction. Therefore, the nanofluid behaves as a single phase fluid, and a single phase LBM is able to simulate the results of this experiment. Although the flow in micromodels is 3D, we showed that 2D LBM can be used provided an effective viscous drag force, representing the effect of the third dimension, is considered. Good qualitative and quantitative agreement is seen between the numerical and experimental results. |
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| Keywords: | Nanofluid Micromodel Porous medium Lattice Boltzmann |
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