Natural Convection of Nanofluid Inside an Enclosure Having Inner Rhombus Object.
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| Title: | Natural Convection of Nanofluid Inside an Enclosure Having Inner Rhombus Object. |
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| Authors: | Alhazmy, Majed1 (AUTHOR) mhazmy@kau.edu.sa, Alkhamis, Nawaf1 (AUTHOR), Alqadi, Ibraheem2 (AUTHOR), Albahi, Ali2 (AUTHOR) |
| Source: | Heat Transfer Engineering. 2026, Vol. 47 Issue 10, p906-919. 14p. |
| Subject Terms: | *Heat transfer, *Nanofluids, *Geometric shapes, *Rayleigh number, *Nusselt number, *Natural heat convection |
| Abstract: | This article presents the result of a numerical study to evaluate the heat transfer rate from two triangular objects placed inside a square enclosure compared to the heat transfer rate from a single rhombus-shaped object. The two triangular objects resulted from dividing the rhombus object along its vertical axis. Therefore, the volume of the two triangular shapes equals the volume of a single rhombus. Dividing the rhombus object increases the heat transfer surface area while placing the two produced triangular objects at a distance apart creates a new pathway for the fluid to move between them. This arrangement increases the heat transfer rate from the objects and presents a way to enhance the cooling of high-temperature systems. Using nanofluid provides an additional heat transfer enhancement. Using Al2O3/water nanofluid increases the Nusselt number by 75% above the level achieved using pure water. Moreover, dividing the rhombus object into two triangular bodies and using Al2O3 nanofluid increases the highest flow velocity by 160% and increases the Nusselt number by 288% depending on Rayleigh number and central spacing. This would allow faster operation of electronic components and help reduce the system's sizes in general. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Abstract: | This article presents the result of a numerical study to evaluate the heat transfer rate from two triangular objects placed inside a square enclosure compared to the heat transfer rate from a single rhombus-shaped object. The two triangular objects resulted from dividing the rhombus object along its vertical axis. Therefore, the volume of the two triangular shapes equals the volume of a single rhombus. Dividing the rhombus object increases the heat transfer surface area while placing the two produced triangular objects at a distance apart creates a new pathway for the fluid to move between them. This arrangement increases the heat transfer rate from the objects and presents a way to enhance the cooling of high-temperature systems. Using nanofluid provides an additional heat transfer enhancement. Using Al2O3/water nanofluid increases the Nusselt number by 75% above the level achieved using pure water. Moreover, dividing the rhombus object into two triangular bodies and using Al2O3 nanofluid increases the highest flow velocity by 160% and increases the Nusselt number by 288% depending on Rayleigh number and central spacing. This would allow faster operation of electronic components and help reduce the system's sizes in general. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 01457632 |
| DOI: | 10.1080/01457632.2025.2489705 |
