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

Lioua Kolsi, Kaouther Ghachem, Samia Larguech and Ghada AlNemer
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Lioua Kolsi: Department of Mechanical Engineering, College of Engineering, Ha’il University, Ha’il City 81481, Saudi Arabia
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

Mathematics, 2022, vol. 10, issue 12, 1-19

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.

Keywords: 3D double diffusion; partial differential equations; finite volume method; vector potential-vorticity formalism; blocked-of-region method; conductive fins (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (1)

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