Volume 21, Issue 2, April 2016, Pages 367–375
Zoubair Boulahia1, Abderrahim Wakif2, and Rachid Sehaqui3
1 University of Hassan II, Faculty of Sciences Aïn Chock, Laboratory of Mechanics, B.P.5366 Mâarif, Casablanca, Morocco
2 University of Hassan II, Faculty of Sciences Aïn Chock, Laboratory of Mechanics, B.P.5366 Mâarif, Casablanca, Morocco
3 University of Hassan II, Faculty of Sciences Aïn Chock, Laboratory of Mechanics, B.P.5366 Mâarif, Casablanca, Morocco
Original language: English
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This article presents a numerical study on natural convection heat transfer of nanofluid (Cu-water) in a square enclosure having a cold obstacle. The transport equations were solved using the finite difference formulation based on Alternating Direction Implicit method (ADI method). The method used is validated against previous works. Effects of various design parameters such as the height of the obstacle (0.125≤H≤0.5), Rayleigh number (〖10〗^3 ≤ Ra ≤ 〖10〗^6), and nanoparticles volume fraction (0 ≤ φ ≤ 0.2) on the heat transfer are investigated. The results show that the heat transfer rate inside the enclosure increases by increasing the height of the cold block, the volume fraction of nanoparticles and Rayleigh number.
Author Keywords: Enclosure, Natural Convection, Cooler, Nanofluid.
Zoubair Boulahia1, Abderrahim Wakif2, and Rachid Sehaqui3
1 University of Hassan II, Faculty of Sciences Aïn Chock, Laboratory of Mechanics, B.P.5366 Mâarif, Casablanca, Morocco
2 University of Hassan II, Faculty of Sciences Aïn Chock, Laboratory of Mechanics, B.P.5366 Mâarif, Casablanca, Morocco
3 University of Hassan II, Faculty of Sciences Aïn Chock, Laboratory of Mechanics, B.P.5366 Mâarif, Casablanca, Morocco
Original language: English
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This article presents a numerical study on natural convection heat transfer of nanofluid (Cu-water) in a square enclosure having a cold obstacle. The transport equations were solved using the finite difference formulation based on Alternating Direction Implicit method (ADI method). The method used is validated against previous works. Effects of various design parameters such as the height of the obstacle (0.125≤H≤0.5), Rayleigh number (〖10〗^3 ≤ Ra ≤ 〖10〗^6), and nanoparticles volume fraction (0 ≤ φ ≤ 0.2) on the heat transfer are investigated. The results show that the heat transfer rate inside the enclosure increases by increasing the height of the cold block, the volume fraction of nanoparticles and Rayleigh number.
Author Keywords: Enclosure, Natural Convection, Cooler, Nanofluid.
How to Cite this Article
Zoubair Boulahia, Abderrahim Wakif, and Rachid Sehaqui, “Natural Convection Heat Transfer of the nanofluids in a Square Enclosure with an Inside Cold Obstacle,” International Journal of Innovation and Scientific Research, vol. 21, no. 2, pp. 367–375, April 2016.
