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Numerical Investigation of the Double Diffusive Convection in 3D Trapezoidal Solar Still Equipped with Conductive Fins

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  • Lioua Kolsi

    (Department of Mechanical Engineering, College of Engineering, Ha’il University, Ha’il City 81481, Saudi Arabia
    Research Laboratory of Metrology and Energy Systems, National Engineering School, Energy Engineering Department, University of Monastir, Monastir 5000, Tunisia)

  • Kaouther Ghachem

    (Department of Industrial Engineering and Systems, College of Engineering, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia)

  • Samia Larguech

    (Department of Electrical Engineering, College of Engineering, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia)

  • Ghada AlNemer

    (Department of Mathematical Science, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia)

Abstract

In this paper a numerical investigation on the double diffusive natural convection in a finned solar still is performed using the finite volume method. The 3D vector potential-vorticity formalism is used to eliminate the gradient pressure terms and due to the complex shape of the cavity the blocked-off-region method is adopted. After getting the dimensionless governing equations, they are written in a generalised form then discretised. The effects of the buoyancy ratio, conductivity ratio and Rayleigh number of the flow structure, temperature field and heat and mass transfer are studied. The results show that the increase of conductivity ratio and Rayleigh number leads to an enhancement of the heat and mass transfer.

Suggested Citation

  • Lioua Kolsi & Kaouther Ghachem & Samia Larguech & Ghada AlNemer, 2022. "Numerical Investigation of the Double Diffusive Convection in 3D Trapezoidal Solar Still Equipped with Conductive Fins," Mathematics, MDPI, vol. 10(12), pages 1-19, June.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:12:p:2115-:d:841573
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    References listed on IDEAS

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    1. Mahmoud S. El-Sebaey & Asko Ellman & Ahmed Hegazy & Tarek Ghonim, 2020. "Experimental Analysis and CFD Modeling for Conventional Basin-Type Solar Still," Energies, MDPI, vol. 13(21), pages 1-17, November.
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    Cited by:

    1. Chemseddine Maatki, 2023. "Numerical Analysis of Entropy Generation in a Double Stage Triangular Solar Still Using CNT-Nanofluid under Double-Diffusive Natural Convection," Mathematics, MDPI, vol. 11(13), pages 1-19, June.

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