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Information Journal Paper

Title

Numerical Study of the Mixed Convection and the Entropy Generation in a Rhombic Enclosure Filled with the Cu-Water Nanofluid with the Heat Absorption/ Generation

Pages

  289-298

Abstract

 The Mixed convection heat transfer and the Entropy generation in a Rhombic enclosure filled with the Cu-water Nanofluid in presence of heat absorption or generation is investigated. The bottom wall is hot, the top wall is cold and the skewed walls are insulated. The top wall is moving from left to right at constant speed of U0. The computational grid is generated with the mapping of the geometry into a square domain. The governing equations are formulated in terms of the dimensionless stream function, the vorticity, and the energy and have been numerically solved using the finite difference scheme. The rhombic angle, the Richardson number, the volume fraction nanoparticles, and the heat generation or absorption coefficients effects on the heat transfer and fluid flow characteristics are examinated. The results show that the increase of the nanoparticles volume fraction leads to the increase of the average nusselt number, the total entropy, and Bejan number. When the Richardson number is 0. 1 and for all the nanoparticles volume fraction, the Nusselt number has maximum and minimum values at the angles of 120° and 30° , respectively. In addition, for all the volume fractions of nanoparticles and skew angles except the angle of 60 degree, the Nusselt number, the total entropy and Bejan number increase with the decreasing of the Richardson number. When Ri=0. 01, Nusselt number is increased and decreased by the heat absorption and generation, respectively.

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    APA: Copy

    Mehryan, S.A.M., SAFFARIAN, M.R., NAMAZIAN, Z., & Moradi Kashkooli, F.. (2019). Numerical Study of the Mixed Convection and the Entropy Generation in a Rhombic Enclosure Filled with the Cu-Water Nanofluid with the Heat Absorption/ Generation. JOURNAL OF MECHANICAL ENGINEERING, 48(4 (85) ), 289-298. SID. https://sid.ir/paper/269920/en

    Vancouver: Copy

    Mehryan S.A.M., SAFFARIAN M.R., NAMAZIAN Z., Moradi Kashkooli F.. Numerical Study of the Mixed Convection and the Entropy Generation in a Rhombic Enclosure Filled with the Cu-Water Nanofluid with the Heat Absorption/ Generation. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2019;48(4 (85) ):289-298. Available from: https://sid.ir/paper/269920/en

    IEEE: Copy

    S.A.M. Mehryan, M.R. SAFFARIAN, Z. NAMAZIAN, and F. Moradi Kashkooli, “Numerical Study of the Mixed Convection and the Entropy Generation in a Rhombic Enclosure Filled with the Cu-Water Nanofluid with the Heat Absorption/ Generation,” JOURNAL OF MECHANICAL ENGINEERING, vol. 48, no. 4 (85) , pp. 289–298, 2019, [Online]. Available: https://sid.ir/paper/269920/en

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