Impact of two-phase hybrid nanofluid approach on mixed convection inside wavy lid-driven cavity having localized solid block

Ammar I Alsabery; Tahar Tayebi; Hakim T Kadhim; Mohammad Ghalambaz; Ishak Hashim; Ali J Chamkha

doi:10.1016/j.jare.2020.09.008

Impact of two-phase hybrid nanofluid approach on mixed convection inside wavy lid-driven cavity having localized solid block

J Adv Res. 2020 Sep 28:30:63-74. doi: 10.1016/j.jare.2020.09.008. eCollection 2021 May.

Authors

Ammar I Alsabery^{1

2}, Tahar Tayebi^{3

4}, Hakim T Kadhim⁵, Mohammad Ghalambaz^{6

7}, Ishak Hashim², Ali J Chamkha^{8

9}

Affiliations

¹ Refrigeration & Air-conditioning Technical Engineering Department, College of Technical Engineering, The Islamic University, Najaf, Iraq.
² Department of Mathematical Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.
³ Faculty of Sciences & Technology, Mohamed El Bachir El Ibrahimi University, Bordj Bou Arreridj, El-Anasser, Algeria.
⁴ Energy Physics Laboratory, Department of Physics, Faculty of Science, Mentouri Brothers Constantine1 University, Constantine, Algeria.
⁵ Mechanical Department, Technical Institute of Al-Diwaniyah, Al-Furat Al-Awsat Technical University (ATU), Iraq.
⁶ Metamaterials for Mechanical, Biomechanical and Multiphysical Applications Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
⁷ Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
⁸ Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.
⁹ Institute of Theoretical and Applied Research (ITAR), Duy Tan University, Hanoi 100000, Vietnam.

Abstract

Introduction: Mixed convection flow and heat transfer within various cavities including lid-driven walls has many engineering applications. Investigation of such a problem is important in enhancing the performance of the cooling of electric, electronic and nuclear devices and controlling the fluid flow and heat exchange of the solar thermal operations and thermal storage.

Objectives: The main aim of this fundamental investigation is to examine the influence of a two-phase hybrid nanofluid approach on mixed convection characteristics including the consequences of varying Richardson number, number of oscillations, nanoparticle volume fraction, and dimensionless length and dimensionless position of the solid obstacle.

Methods: The migration of composite hybrid nanoparticles due to the nano-scale forces of the Brownian motion and thermophoresis was taken into account. There is an inner block near the middle of the enclosure, which contributes toward the flow, heat, and mass transfer. The top lid cover wall of the enclosure is allowed to move which induces a mixed convection flow. The impact of the migration of hybrid nanoparticles with regard to heat transfer is also conveyed in the conservation of energy. The governing equations are molded into the non-dimensional pattern and then explained using the finite element technique. The effect of various non-dimensional parameters such as the volume fraction of nanoparticles, the wave number of walls, and the Richardson number on the heat transfer and the concentration distribution of nanoparticles are examined. Various case studies for Al₂O₃-Cu/water hybrid nanofluids are performed.

Results: The results reveal that the temperature gradient could induce a notable concentration variation in the enclosure.

Conclusion: The location of the solid block and undulation of surfaces are valuable in the control of the heat transfer and the concentration distribution of the composite nanoparticles.

Keywords: Hybrid nanofluid; Localized solid block; Mixed convection; Thermophoresis and Brownian motion; Two-phase approach; Wavy heater.