Natural convection of nanofluid in a porous medium within a right-angle trapezoidal enclosure: A Tiwari-Das nanofluid model

Venkatadri, Kothuru; Fazuruddin, Syed; Bég, O Anwar; Ramesh, Obbu

Abstract

The study uses the Tiwari-Das nanofluid model to compute free convective flows in a right-angled trapezoidal cavity containing a porous material which is saturated with Cu-water nanofluid material. This investigation aims to enhance the characteristics of hybrid fuel cells and energy depository devices by analysing the cavity thermal physics and fluid flow characteristics. In the fuel cell trapezoidal enclosure geometry, the inclined and right wall portions are maintained at different isothermal temperatures, at all times. Finite difference-based stream function-vorticity numerical simulations are employed to carry out this analysis. The outcomes have been presented for isotherms, streamlines, and Nusselt numbers concerning nanoparticle volume fraction, Darcy number, and various Rayleigh numbers. It is found that the inverse relationship between the thermal Rayleigh number and the nanofluid volume has a significant impact on the average Nusselt number.

Citation

Venkatadri, K., Fazuruddin, S., Bég, O. A., & Ramesh, O. (2023). Natural convection of nanofluid in a porous medium within a right-angle trapezoidal enclosure: A Tiwari-Das nanofluid model. #Journal not on list, 17(1), https://doi.org/10.1080/16583655.2023.2263224

• Journal Article Type: Article
• Acceptance Date: Sep 22, 2023
• Online Publication Date: Oct 4, 2023
• Publication Date: Oct 4, 2023
• Deposit Date: Sep 22, 2023
• Publicly Available Date: Oct 4, 2023
• Journal: Journal of Taibah University of Science
• Peer Reviewed: Peer Reviewed
• Volume: 17
• Issue: 1
• DOI: https://doi.org/10.1080/16583655.2023.2263224
• Keywords: Trapezoidal enclosure; Natural convection; Cu-water nanofluid; permeable medium; Numerical; Fuel cells